EKAKJ

December 14, 2007

CCNA 2

Filed under: cisco — ekakj @ 2:39 am

chapter 1

1 The console port can be used for which of the following? (Choose three.)

*** debugging *
*** password recovery *
routing data between networks
*** troubleshooting *
connecting one router to another
2 ABC Company just purchased three new routers to start their company network. Which items are needed to establish a terminal session between a PC and the router for the initial configuration? (Choose three.)

straight-through cable
*** terminal emulation software *
*** rollover cable *
*** RJ-45 to DB-9 connector *
V.35 cable
3 Which ports on Cisco routers can be used for initial configuration? (Choose two.)

Ethernet
*** console *
*** auxiliary *
serial
AUI
BRI
4 Which of the following descriptions are true regarding the management connections on a Cisco router? (Choose three.)

*** They are non-network connections. *
They are used to connect the router to the rest of the production network.
They are synchronous serial ports.
*** They are used for initial router configuration. *
*** They are asynchronous serial ports. *
They are accessed using their assigned IP address.
5 Which of the following devices are used in the construction of a WAN? (Choose three.)

hubs
*** routers *
*** communication servers *
transceivers
*** modems *
multi-port repeaters 
6 Why is a console connection to a router or switch preferred when troubleshooting? (Choose two.)

can be accessed remotely
*** does not depend on network services *
*** displays startup and error messages by default *
does not require special components
7 Which of the following layers of the OSI model are incorporated in WAN standards? (Choose two.)

*** physical layer *
application layer
transport layer
*** data link layer *
session layer
8 What do routers use to select the best path for outgoing data packets?

ARP tables
bridging tables
*** routing tables *
switching tables
9 A router is composed of many internal components. Which of the following components stores a copy of the router's configuration file?

metal-oxide memory
read only memory
flash memory
*** non-volatile random access memory *
10 Select the statements that correctly describe flash memory in a 2600 series router? (Choose two.)

holds the startup configuration by default
*** can be upgraded with single in-line memory modules*
*** stores Cisco IOS software images *
stores routing table information by default
maintains the only copy of an IOS image after the router is booted
11 During the initial configuration of a 2600 series Cisco router, which cable is required for connecting a PC to the console port?

twisted
crossover
*** rollover *
straight
12 Which of the following are true regarding router interfaces? (Choose three.)

provide temporary memory for the router configuration files
connect the router to the network for packet entry and exit *
can be on the motherboard or a separate module *
hold the IOS image
*** connect the router to LANs and WANs *
13 Which of the following are functions of RAM? (Choose three.)

contains startup configuration file
stores routing table *
*** holds fast switching cache *
retains contents when power is removed
*** stores running configuration file *
14 Which router component holds the configuration file when power is lost?

volatile random access memory
read only memory
*** non-volatile random access memory *
flash memory
15 Several Ethernet hosts on a LAN need the gateway services of a Cisco 2500 series router. Which of the following would be needed to physically connect a router to all of the hosts on the LAN? (Choose two.)

a crossover cable between the transceiver on a router and a switch
crossover cables between a switch and hosts on a LAN
a straight-through cable between the auxiliary port on a router and a switch
a rollover cable between the console port on a router and a switch
*** straight-through cables between a switch and hosts on a LAN *
*** a straight-through cable between the transceiver on a router and a switch *

16 What contains the instructions that a router uses to control the flow of traffic through its interfaces?

packet configuration
*** configuration files *
flash memory
internal components
17 Which basic components do a router and a standard desktop PC have in common? (Choose three.)

*** CPU *
hard drive
*** input/output interfaces *
keyboard
monitor
*** system bus *
18
Terminal emulation software, such as HyperTerminal, can be used to configure a router. Which of the following HyperTerminal options shown in the graphic are correctly set to allow configuration of a Cisco router? (Choose three.)

bits per second
*** data bits *
*** parity *
*** stop bits *
flow control
19 Which of the following are functions of NVRAM? (Choose two.)

stores the routing table
*** retains contents when power is removed *
*** stores the startup configuration file *
contains the running configuration file
stores the ARP table
20 Which of the following tasks can be accomplished through a management connection on a router? (Choose three.)

*** troubleshooting problems *
*** monitoring the system *
capturing LAN data packets
*** configuring the router *
routing data packets
21 An internetwork must include which of the following? (Choose three.)

*** switching *
static addressing
IETF standardization
*** dynamic or static routing *
*** consistent end-to-end addressing *
22 Which of the following describes the function of a WAN?

connects peripherals in a single location
connects multiple networks in a single building
provides connectivity on a LAN
*** provides connectivity over a large geographic area *     Chapter 2    1 What information about the router and its startup process can be gathered from the output of the show version command? (Choose three.)

*** the last restart method *
the tftp software version installed
the amount of NVRAM and FLASH used
*** the configuration register settings *
*** the location used for loading the IOS *
2 What baud rate needs to be configured on terminal emulation software to allow a connection to the console port of a router?

2400
4800
*** 9600 *
14200
38400
3 Which command takes precedence if the commands enable password and enable secret are both configured on a router?

enable password
*** enable secret *
Neither. They are both enabled.
Neither. They cancel each other out.
4 The active IOS of the router is initialized from FLASH. In this scenario, what commands would be used to display the name of the active IOS? (Choose two.)

Router#show IOS
*** Router#show flash *
Router#show nvram
*** Router#show version *
Router#show startup-config
Router#show running-config
5 Which keystroke is used to move to the beginning of a command line?

*** Ctrl-A *
Ctrl-B
Esc-A
Esc-B
Ctrl-C
Ctrl-Z
6 What is the maximum number of commands allowed in the history buffer?

10
20
128
255
*** 256 *
7 Which tasks can be performed in the ROM monitor mode? (Choose two.)

*** recover from system failures *
create startup configuration files
*** recover from lost passwords *
configure IP addresses on all router interfaces
perform high level diagnostics
8 What is the default sequence for loading the IOS?

NVRAM, TFTP, FLASH
NVRAM, TFTP, CONSOLE
FLASH, ROM, TFTP
*** FLASH, TFTP, ROM *
TFTP, FLASH, ROM
9
Which of the following identifies the correct items needed to initially configure a router?

1) DB-9-to-RJ-45 on the PC's serial port
2) a straight through cable
3) the router's console port
1) PC's Ethernet port
2) a crossover cable
3) the router's Ethernet port
1) DB-9-to-RJ-45 on the PC's serial port
2) a rollover cable
3) the router's Ethernet port
1) PC's Ethernet port
2) a rollover cable
3) the router's console port
*** 1) DB-9-to-RJ-45 on the PC's serial port *
2) a rollover cable
3) the router's console port
1) PC's Ethernet port
2) a rollover cable
3) the router's Ethernet port
10 When the router output is being viewed through a terminal program, which statements are true regarding the --More-- prompt at the bottom of the router display? (Choose two.)

Press the Spacebar to display the next line.
*** Press the Spacebar to view the next screen. *
Press the PgDn key to view the next screen.
*** Press the Enter key to display the next line. *
Press the Enter key to view the next screen.
11 Which connection method can be used to perform the initial configuration of a router?

*** use a serial connection of a computer connected to the console port of a router *
telnet to the router through a serial port
use a vty port through the Ethernet interface
use a modem connected to the AUX port of the router
12 What information does the name of the IOS file provide to the network administrator? (Choose three.)

the amount of NVRAM required to run the image
*** the hardware platform the image runs on *
the various software platforms the image can run on
*** special features and capabilities of the image *
the bandwidth supported by the IOS
where the image executes from and if it has been compressed *
13 Under what conditions does the router enter setup mode? (Choose three.)

immediately after issuing the command Router#erase start
*** after issuing the command Router#setup *
*** during the initial configuration of a router *
*** after deleting the backup configuration and reloading the router *
after deleting the running configuration
14 What does the command sh? return as output if issued at the Router# prompt?

all show commands allowed in privileged mode
*** all commands beginning with the letters sh *
an incomplete command error message
an invalid command error message
15 Cisco IOS software is separated into two levels as a security feature. What are those two levels? (Choose two.)

global
*** privileged *
local
*** user *
interface 

16 Which keystrokes can be used to return to the privileged mode from the interface configuration mode?

Ctrl-P
Ctrl-Shift-6, then X
*** Ctrl-Z *
Esc
17 Which of the following is the correct flow of routines for a router startup?

*** load bootstrap, load IOS, apply configuration *
load bootstrap, apply configuration, load IOS
load IOS, load bootstrap, apply configuration, check hardware
check hardware, apply configuration, load bootstrap, load IOS
18 Which of the following statements concerning router interface modes are correct? (Choose three.)

*** User EXEC mode provides commands to monitor router operation. *
Privileged EXEC mode only provides commands to change or configure router operation.
Password protected configuration modes can be accessed from either user EXEC or privileged EXEC modes.
*** On a router with the name Core1, the prompt indicating privileged EXEC mode is Core1#. *
The command to enter privileged EXEC mode is Router# enable.
*** A username and password may be required to enter privileged EXEC mode. *
19 A network administrator needs to configure a router. Which of the following connection methods requires network functionality to be accessible?

console
AUX
*** Telnet *
modem
20 What is the default sequence for loading the configuration file?

NVRAM, FLASH, ROM
FLASH, TFTP,CONSOLE
*** NVRAM, TFTP, CONSOLE *
FLASH, TFTP, ROM
21 Which tasks can be accomplished by using the command history feature? (Choose two.)

View a list of commands entered in a previous session.
Recall up to 15 command lines by default.
*** Set the command history buffer size. *
*** Recall previously entered commands. *   chapter 3   1 Why is it important to create standards for network consistency? (Choose three.)

*** reduces network complexity *
increases unplanned downtime
*** limits unplanned downtime *
increases bandwidth by regulating networking performance
*** limits events that may impact network performance *
2 A telnet session can be established when using the IP address of a router but not the name of the router. Which of the following is the most likely cause of the problem?

*** an incorrect host table entry *
an incorrect ARP table entry
an incorrect routing table entry
an incorrect protocol configured
an incorrect subnet mask
3
The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three.)

Sydney(config-if)# ip address 201.100.53.2 255.255.255.0
Sydney(config-if)# no shutdown *
*** Sydney(config-if)# ip address 201.100.53.1 255.255.255.224 *
*** Sydney(config-if)# clock rate 56000 *
Sydney(config-if)# ip host Melbourne 201.100.53.2
4 Which commands display information about the IOS or configuration files stored in router memory? (Choose three.)

Router# show ram
*** Router# show flash *
Router# show hosts
Router# show history
*** Router# show version *
*** Router# show startup-config *
5 Select the interface descriptions that provide the most appropriate information. (Choose two.)

circuit number
*** host IP address *
*** telnet password *
number of hops between routers
purpose and location of the interface
6 Select the commands necessary to remove any existing configuration on a router. (Choose two.)

delete flash
*** erase startup-config *
*** erase running-config *
restart
reload
delete NVRAM
7 Router names are associated with IP addresses. What is the name of the table that is created by this association?

IP table
SAP table
ARP table
MAC table
*** HOST table *
RARP table
8 Select the commands that will store the current configuration file to a network TFTP server? (Choose two.)

Router# copy run tftp
Router# copy tftp run
*** Router# copy running-config tftp *
*** Router# copy tftp running-config *
Router(config)# copy running-config tftp
Router(config)# copy tftp running-config
9 Which statements are true regarding the recommended use of login banners? (Choose two.)

*** They should be used to display information regarding system changes or maintenance. *
*** They should be used to display warnings to unauthorized users. *
They should be used to display welcome messages prior to login.
They should be seen only by system administrators.
They should provide confirmation of incoming IP addresses.
10 What is the effect of the command ip host HQ 192.1.1.1?

permits a ping to 192.1.1.1 with the command ping HQ
assigns the description HQ to the interface with the ip address 192.1.1.1
renames the router as HQ
defines a static route to the host 192.1.1.1
*** configures the remote device HQ with the ip address of 192.1.1.1 *
11 What are the default settings for a serial interface? (Choose three.)

*** DTE *
DCE
*** shutdown *
*** no IP address *
clock rate 56000
encapsulation ARPA
12 What will be the response from the router after the command, "router(config)# hostname portsmouth" is entered?

portsmouth#
*** portsmouth(config)# *
invalid input detected
router(config-host)#
hostname = portsmouth
portsmouth#
? command not recognized
router(config)#
13 A network administrator wants to assure that any password that permits access to the privileged EXEC mode is not shown in plain text in the configuration files. Which commands will accomplish this task? (Choose two.)

Router(config)#enable cisco secret
Router(config)#enable cisco
*** Router(config)#service password-encryption *
*** Router(config)#enable secret cisco *
Router(config)#encrypt-all cisco
Router(config)#service encryption-password
14 Which command sequence will permit access to all five router virtual terminal lines with a password of cisco?

Router(config-line)#config telnet
Router(config-line)# line vty 0 5
Router(config-line)# password cisco

Router(config)# line vty 0 4
Router(config)# password cisco

*** Router(config)# line vty 0 4*
Router(config-line)# password cisco
Router(config-line)# login

Router(config-line)# config telnet
Router(config-line)# password cisco
Router(config-line)# sessions 0 4
15 An IP network is to be added to a router Ethernet interface. What steps must be performed to configure this interface to allow connectivity to the hosts on this LAN? (Choose two.)

*** Enter the command no shutdown. *
A password must be set on the interface.
The interface DCE clock rate must be set.
The interface must be configured for virtual terminal access.
*** The interface must be configured with an IP address and subnet mask. *
The router must be put in setup mode in order for the interface to be configured. 

16 What is the default state of the interfaces on a router?

up, line protocol down
*** down, line protocol down *
adminstratively down, line protocol down
up, line protocol up
17 Which are valid router prompts? (Choose three.)

Router(privileged)#
*** Router(config)# *
Router(command)#
*** Router(config-router)# *
*** Router(config-if)# *
Router(exec)#
18 Select the correct sequence of commands that will configure "Engineering LAN" as the interface description on the Ethernet0 interface.

1)Router# configure terminal
Router(config)# interface e0 description Engineering LAN
*** 2)Router# configure terminal*
Router(config)# interface e0
Router(config-if)# description Engineering LAN
3)Router# configure terminal
Router(config)# interface e0
Router(config-if)# interface description Engineering LAN
4)Router# configure terminal
Router(config)# description Engineering LAN
19 Select the recommended locations to save a running-config file. (Choose three.)

all network hosts
*** network server *
*** floppy disk *
*** TFTP server *
server that is not on the network
20 Which command turns on a router interface?

Router(config-if)# enable
Router(config-if)# no down
Router(config-if)# s0 active
Router(config-if)# interface up
*** Router(config-if)# no shutdown *
21 Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and interfaces that can be protected with passwords. (Choose three.)

*** VTY interface *
*** console interface *
Ethernet interface
secret EXEC mode
*** privileged EXEC mode *
router configuration mode
22 What must be configured to establish a serial link between two routers that are directly connected?

a clock rate on the DTE interface
a no clock rate command on the DTE interface
no configuration is required      chapter 4   1 To obtain CDP information from a Cisco router that is not directly connected to the administrator's console, what must happen?

The source router must send TLV blocks to the remote router.
*** The administrator can Telnet to a Cisco device that is connected to the remote router. *
The administrator needs to issue the Router# show cdp all to view the entire network CDP advertisements.
The administrator must transmit TTL packets to the remote device and wait for a response.
2 Which of the following are displayed by the Router# show cdp neighbors command? (Choose three.)

load
*** platform *
reliability
holdtime*
*** local interface *
3 What command enables CDP on the interface of a router?

*** Router(config-if)# cdp enable *
Router(config-if)# cdp run
Router(config-if)# cdp start
Router(config-if)# cdp config
4 An administrator is attempting to enable CDP on the interface of a Cisco router. After issuing the command Router(config-if)# cdp enable, the router responds with an error stating that CDP is not active. What might be the problem?

The cdp enable command must be issued from the global mode prompt.
The administrator needed to issue the command Router(config-if)# cdp run.
*** CDP has not been configured globally. *
The administrator did not manually enter the CDP neighbors into the CDP table.
5
Which of the following is true regarding CDP and the graphic shown?

CDP running on Router D will gather information about routers A, B, C, and E.
*** By default, Router A will receive CDP advertisements from routers B and C.*
If routers D and E are running different routing protocols, they will not exchange CDP information.
Router E can use CDP to identify the IOS running on Router B.
6
The traceroute command was used to trace the path between routers A and D. What would an output display of three asterisks (***) indicate?

The command was issued from the wrong prompt.
Each datagram was successfully sent.
*** One of the routers is unreachable.*
There are three hops between source and destination.
7 For which of the following network layer protocols does CDP provide information? (Choose three.)

*** IP *
RIP
SNMP
*** AppleTalk *
*** IPX *
IGRP
8
Which command will produce the output shown in the graphic?

*** show cdp *
show cdp neighbors
show cdp neighbors detail
show cdp detail
show cdp traffic
9 What is the purpose of the cdp timer command?

specifies the hold time to be sent in the CDP update packet
resets the traffic counters back to zero
*** specifies how often the Cisco IOS software sends CDP updates *
deletes and resets the CDP table of information about neighbors
10 What is the main use of Telnet?

transfer of data between end users
verification of simple connectivity
routing of data packets
*** remote connection to network devices *
11 Transmitting type length values (TLVs) inside advertisements is a process used by CDP to provide information about neighboring devices. What information is displayed by these TLVs? (Choose three.)

*** interface information of the connected device *
all networks connected to the neighboring device
*** name of the connected device *
routing protocol used on the neighboring device
*** holdtime for advertisements *
12 Why would an administrator use the Telnet application when troubleshooting a network? (Choose three.)

*** It can be used to verify the operation of application layer software between the source and destination.*
Telnet can use the ICMP protocol to verify a hardware connection and network layer address.
*** It is the most complete testing mechanism available. *
*** Remote networks may be accessed via a Telnet session for troubleshooting. *
Time to Live values are used by Telnet to identify a failure of device between source and destination.
13
An administrator logged into Workstation 2 initiates a Telnet session to GAD. The administrator then telnets from GAD to BHM. What will happen if the Enter key is pressed at the privileged mode prompt after the session with BHM is suspended?

The GAD session will be resumed.
*** The BHM session will be resumed. *
The GAD session will be terminated.
The BHM session will be terminated.
14
Pings between Atlanta and Dallas are successful. If a hostname table or DNS connection is not available, which command will successfully establish a remote connection from Atlanta to Dallas via Telnet?

Atlanta> connect Dallas
*** Atlanta> 197.72.3.2 *
Atlanta# 206.157.85.1
Atlanta# telnet Dallas
15 A network administrator was called away from the terminal while using Telnet to monitor a remote router. The Telnet session was left connected. If the default Telnet configuration is used, what will the administrator find upon returning 15 minutes later?

The Telnet session entered a "sleep" state and will resume when the spacebar is pressed.
The Telnet session remained connected and is on the same screen it was left on.
The Telnet session suspended itself and will resume when the Enter key is pressed.
*** The Telnet session terminated itself after 10 minutes of inactivity. *
The Telnet session remained active but now requires the password to be entered again
16 What key sequence is used to suspend a Telnet session on a remote router?

Ctrl-Shift-S
Ctrl-Shift-6
*** Ctrl-Shift-6, then x *
Ctrl-Alt-S
Ctrl-Alt-6
Ctrl-Alt-6, then x
17 An administrator can successfully ping between the Lubbock and Memphis routers. The command Lubbock# telnet Memphis is entered but the Memphis router cannot be reached. What are possible reasons for this failure? (Choose two.)

*** The Lubbock router does not have any entries in its host table.*
Lubbock is not an entry in the host table of the Memphis router.
*** Access to a DNS server is not available. *
The hostname command was not configured correctly on the Memphis router.
The hostname command was not configured correctly on the Lubbock router.
18 How many Telnet sessions can take place simultaneously on a router running a standard edition of the IOS?

4
*** 5 *
8
10
19 How can a network administrator logged in to RTA gather information about the Cisco devices that are directly connected to its neighbor, RTB?

Use the show cdp neighbors detail command on RTA to view information about every device on the entire internetwork.
Use ping to determine the status of RTB, then issue the show cdp neighbors detail command.
*** Use Telnet to connect to RTB, then issue the show cdp neighbors command. *     chapter 5   1
The commands shown in the graphic were entered to alter the startup sequence
of the router. On the next reload, which IOS will be loaded?
The router will load c2500-js-l.112-26d.
The router will load c2500-d-l.120-9.
The router will load the IOS from ROM.
*** The router will boot into ROM monitor mode.*

2 Where does a router look for boot system statements?
ROM
RAM
*** NVRAM *
Flash

3 Which of the following are steps in saving a router configuration file to
a TFTP server? (Choose three.)
Enter configuration mode.
*** Enter the IP address to the TFTP server. *
*** Use the copy running-config tftp command. *
Use the copy tftp running-config command.
*** Name the configuration file or accept the default name. *

4 Routers have different types of memory. Choose the answer that describes
flash memory.
provides working storage
*** stores a fully functional IOS image *
stores the startup configuration file
initializes the code used to boot the router

5 Which command is used to change the order in which the router looks for
system bootstrap information?
config-image
config-system
*** config-register *
config-bootfield
config system bootstrap

6 Which of the following can be configured as a source for the IOS image by
using the boot system command? (Choose two.)
*** TFTP server *
HTTP server
Telnet server
*** Flash memory *
NVRAM memory

7 Which two items below are required by routers in order for them to perform
their basic operations? (Choose two.)
a tftp server
*** a configuration file *
a configuration register file
*** an operating system file *
a DNS table

8 The router has been configured with a valid configuration file. Which of
the following could be a cause for a router not booting normally? (Choose
two.)
*** The flash image is corrupt. *
A console cable is disconnected.
The flash image is located in NVRAM.
The startup configuration file is incomplete.
*** The router encountered a hardware error. *

9 The Cisco IOS image naming convention allows identification of different
versions and capabilities of the IOS. What information can be gained from
the filename c2600-d-mz.121-4? (Choose two.)
The "mz" in the filename represents the special capabilities and features of
the IOS.
The file is uncompressed and requires 2.6 MB of RAM to run.
*** The software is version 12.1, 4th revision. *
The file is downloadable and 121.4MB in size.
*** The IOS is for the Cisco 2600 series hardware platform. *

10 Which part of the configuration register indicates the location of the
IOS?
the bootstrap
*** the boot field *
the IOS locator
the system image loader

11 If a router cannot find a valid configuration file during the startup
sequence, what will occur?
The startup sequence will reset.
*** The router will prompt the user for a response to enter setup mode. *
The startup sequence will halt until a valid configuration file is acquired.
The router will generate a default configuration file based on the last
valid configuration.
The router will monitor local traffic to determine routing protocol
configuration requirements.

12 What command can be used in ROM monitor mode to run the IOS image in
flash?
rommon1> config-register 0x2102
*** rommon1> boot flash:filename *
rommon1> xmodem:filename
rommon1> boot system flash:filename
rommon1> reload system flash:

13 What does a configuration register setting of 0x2102 indicate on a
router?
It tells the router to locate and load the IOS from NVRAM.
It tells the router to locate and load the IOS from FLASH.
*** It tells the router to bypass the configuration in NVRAM. *
It tells the router to look in the startup configuration for boot system
commands.

14 Routers have different types of memory. Choose the answer that describes
NVRAM.
provides working storage
stores a fully functional IOS image
*** stores the startup configuration file *
initializes the code that is used to boot the router

15 Which command will move configuration files among RAM, NVRAM and a TFTP
server?
ping
*** copy *
move
setup
bootp
backup
16 Which command will copy an IOS image from a TFTP server to a router?
*** Router# copy tftp flash *
Router# copy flash tftp
Router(config)# copy tftp flash
Router(config)# copy flash tftp

17 If the configuration register instructs a router to look for
configuration information in NVRAM and no boot system commands exist there,
from where will the router next attempt to boot the IOS?
RAMR
ROM
*** FLASH *
EPROM
ROMMON

18 An IOS image can be copied into flash from a TFTP server. Which of the
following statements are true regarding this process? (Choose three.)
*** A series of "!'s" are displayed as the image is downloaded successfully to
flash. *
The copy tftp flash:filename ip address command is used to copy the IOS from
the server to flash.
*** After the new flash image is downloaded, it is verified. *
*** A series of "e's" are displayed as the current IOS image is erased from
flash. *
Flash must be cleared with the erase command prior to beginning the download
process.

19 If boot system commands have been configured, which of the following
could happen if a router fails to obtain an IOS image from the primary
sources during bootup?
*** The router will load a subset of a full IOS version from system ROM. *
The router will attempt to reboot two times before failing.
The router will load the last good IOS image from NVRAM.     chapter 6   1 How does a router learn about routes to a network? (Choose three.)

*** Information is gathered from its own configuration regarding directly connected networks. *
Switches forward destination address information to each router.
Hosts communicate destination network information to each router.
*** Other routers forward information about known networks. *
*** Routes are entered manually by a network administrator. *
Routes are learned from information gathered from ARP tables.
2 What are some of the advantages of using a link-state routing protocol instead of a distance vector routing protocol? (Choose two.)

The topology database eliminates the need for a routing table.
Frequent periodic updates are sent to minimize the number of incorrect routes in the topological database.
*** Routers have direct knowledge of all links in the network and how they are connected. *
*** After the inital LSA flooding, they generally require less bandwidth to communicate changes in a topology.*
Link-state protocols require less router processor power than distance vector protocols.
3 What is the purpose of a routing protocol?

It is used to build and maintain ARP tables.
It provides a method for segmenting and reassembling data packets.
It allows an administrator to devise an addressing scheme for the network.
*** It allows a router to share information about known networks with other routers. *
It provides a procedure for encoding and decoding data into bits for packet forwarding.
4 Which of the following statements are true regarding the command ip route 172.16.1.0 255.255.255.0 172.16.2.1? (Choose three.)

*** This command is used to set up a static route. *
This command is used to set up a default route.
*** This command is entered from global configuration mode. *
*** All packets intended for network 172.16.1.0 will be sent to gateway 172.16.2.1. *
All packets intended for network 172.16.2.1 will be sent to gateway 172.16.1.0.
5 Which of the following conditions must be met in order for a network to have converged?

The routers in the network are operating with dynamic routing protocols.
The routers in the network are operating with compatible versions of IOS.
The routers in the network are operating with the same routing tables.
*** The routers in the network are operating with consistent routing knowledge. *
6 Describe the switching function that occurs in a router.

allows the router to make forwarding decisions based on Layer 2 addressing
uses network addressing to select the best route and interface to forward data
*** accepts a packet on one interface and forwards it to a second interface *
enables the router to select the most appropriate interface for forwarding a packet
7 If dynamic routing is not configured on a router, how do routing table updates occur?

Link state advertisements are sent from other routers.
*** Updates are made to the routing table by the administrator. *
Best path information is communicated by network hosts.
The routing table is updated by neighboring routers.
8 Given the following commands:
Router(config)# router rip
Router(config-router)# network 192.5.5.0
What can be concluded about the routing processes used on the router? (Choose three.)

A link state routing protocol was used.
*** A distance vector routing protocol was used. *
*** Routing updates will broadcast every 30 seconds. *
Routing updates will broadcast every 90 seconds.
*** Hop count is the only metric used for route selection. *
Bandwidth, load, delay, and reliability are used as metrics for route selection.
9
Refer to the network topology shown. Which of the following commands will configure a route to the 172.31.3.0 network that the router will consider to be most reliable?

Montana(config)# ip route 172.31.3.0 255.255.255.0 172.31.4.1
*** Montana(config)# ip route 172.31.3.0 255.255.255.0 s1 *
Utah(config)# ip route 172.31.3.0 255.255.255.0 172.31.2.1
Utah(config)# ip route 172.31.3.0 255.255.255.0 s1
10 Which type of address does a router use to make routing decisions?

source IP address
source MAC address
*** destination IP address *
destination MAC address
11
The routers shown in the graphic receive routing updates every 30 seconds by default. Select the commands that were configured on Router2 to achieve this update interval. (Choose two.)

*** 1)Router2(config)# router rip *

2)Router2(config)# router igrp 200

3)Router2(config-router)# network 192.5.5.0 201.100.11.0 210.93.105.0

4)Router2(config-router)# network 192.5.5.0 255.255.255.0
Router2(config-router)# network 210.93.105.0 255.255.255.0
Router2(config-router)# network 201.100.11.0 255.255.255.0

*** 5)Router2(config-router)# network 192.5.5.0 *
Router2(config-router)# network 201.100.11.0
Router2(config-router)# network 210.93.105.0
12 All routers at a medium sized company have been upgraded. The administrator of the network has decided that a more advanced routing protocol using a combination of both distance vector and link state features will be implemented. Which protocol should the administrator select for the network?

RIP
IGRP
BGP
OSPF
*** EIGRP *
13
Assuming that the network shown in the graphic is converged and dynamic routing is enabled, which of the following conditions will cause a modification to the Orlando routing table? (Choose two.)

*** The device connecting the S0 interface of the Tampa router to the serial link loses power. *
*** A network administrator shuts down the Orlando router E0 interface. *
A DCHP server connected to the Tampa E1 network loses power.
The IP address of a workstation on the Orlando E0 network is reassigned.
A host on the Orlando E1 network transmits data to a server on the Tampa E1 network.
A Telnet connection to the Orlando router fails.
14 Select the statements that describe link-state routing processes? (Choose three.)

*** Each router develops its own map of the entire network. *
*** Routers send triggered updates when changes in the network occur. *
*** Link-state routing protocols place a higher load on router resources during the routing protocol initialization. *
Link-state protocols are more prone to routing loops than distance vector routing protocols. 

Networks using link-state routing protocols are slower to reach convergence after changes have occurred
than those using distance vector protocols.
15 Which protocol provides enough information in its addressing scheme to allow a packet to be forwarded from one host to another? (Choose two.)

*** IP *
IGRP
EIGRP
*** IPX *
OSPF
RIP 

16 Which category of routing algorithms discovers and maintains a topological map of the entire internetwork?

static
Bellman-Ford
exterior gateway
Internetwork Packet Exchange
distance vector
*** link-state *
17 Which are the primary functions used by a router when forwarding data?(Choose two.)

data encryption
error notification
*** packet switching *
address identification
*** path determination *
packet validation
18 Which protocol can be used to route traffic between two ISPs?

RIP
*** BGP *
IGRP
OSPF
EIGRP
19 Why is it necessary to specify a list of networks when configuring an interior routing protocol?

to tell the router how to reach those networks
*** to tell the router which attached networks participate in routing updates *
to tell the router which set of metrics to use for the attached networks
to tell the router which routing protocol to use
20
Referring to the diagram, which commands will enable hosts on the Idaho E0 network to reach hosts on the E0 network of the Montana router? (Choose two.)

Montana(config)# ip route 172.31.5.0 255.255.255.0 172.31.5.1
*** Montana(config)# ip route 172.31.3.0 255.255.255.0 172.31.4.1 *
Idaho(config)# ip route 172.31.5.0 255.255.255.0 172.31.4.1
*** Idaho(config)# ip route 172.31.5.0 255.255.255.0 172.31.4.2 *
Idaho(config)# ip route 172.31.5.1 255.255.255.0 172.31.4.1
21 Given the following commands:
Router(config)# router igrp 300
Router(config-router)# network 192.5.5.0
What can be concluded about the routing process on this router? (Choose three.)

*** A distance vector routing protocol was used. *
A link state routing protocol was used.
Routing updates will broadcast every 30 seconds.
*** Routing updates will broadcast every 90 seconds. *
Hop count is the metric used for route selection.
*** Bandwidth, load, delay and reliability are the metrics used for route selection. *
22 Which two statements describe autonomous systems? (Choose two.)

Interior gateway protocols are used between autonomous systems.
*** Exterior gateway protocols are used between autonomous systems. *
An autonomous system may be under the control of multiple organizations.
*** An autonomous system is identified by a 16 bit number assigned by ARIN. *
The autonomous system is identified in the network portion of the IP address.
23 Given the command, RouterC(config)# ip route 197.5.2.0 255.255.255.0 192.10.1.1, what does the address 192.10.1.1 represent?

the source host
*** the next hop router *
the outbound interface
the destination network
24 Why is fast convergence desirable in networks that use dynamic routing protocols?

Routers will not allow packets to be forwarded until the network has converged.
Hosts are unable to access their gateway until the network has converged.
*** Routers may make incorrect forwarding decisions until the network has converged. *
Routers will not allow configuration changes to be made until the network has converged.
25
Which of the following are valid static IP routes? (Choose three.)

RouterB(config)# ip route 192.168.5.0 255.255.255.0 S1
*** RouterC(config)# ip route 192.168.1.0 255.255.255.0 S1 *
*** RouterA(config)# ip route 192.168.3.0 255.255.255.0 192.168.2.2 *
RouterB(config)# ip route 192.168.1.0 255.255.255.0 192.168.2.2
*** RouterC(config)# ip route 192.168.2.0 255.255.255.0 192.168.4.1 *  
RouterA(config)# ip route 192.168.4.0 255.255.255.0 192.168.2.1 

The administrator will be prompted to load a valid IOS image.

Use traceroute to establish the pathway to RTB, then issue the show cdp neighbors command 

*** a clock rate on the DCE interface *

Save command lines in a log file for future reference.

chapter 7

1
If the passive interface command is enabled on the fa0/0 interface of Router E, which statements are true? (Choose two.)

Router E will send all routing updates via interface fa0/0.
Router E will ignore all routing updates learned via interface fa0/0.
*** Router E will use routing updates learned via interface fa0/0. *
*** Router E will not send routing updates via interface fa0/0. *
2 Which command set will stop the IGRP routing process?

RouterB(config)# router igrp 101
RouterB(config-router)#shutdown
RouterB(config)# router igrp 101
RouterB(config-router)#network no 192.168.2.0
*** RouterB(config)# no router igrp 101 *
RouterB(config)# router no igrp 101
3
According to the router output from the show ip route command shown above, which of the following statements are true? (Choose two.)

The metric to network 192.168.8.0 is 24.
*** The hop count to a device on network 192.168.8.0 is 2. *
The total path cost to network 192.168.4.0 is the default value of 16.
*** The logical address of the next router for network 192.168.1.0 is 192.168.3.1. *
The devices on network 192.168.5.0 cannot be reached as indicated by the 'C' label.
4 Which of the following can exist in a distance vector network that has not converged? (Choose three.)

*** routing loops *
*** inconsistent traffic forwarding *
no traffic forwarding until system converges
*** inconsistent routing table entries *
routing table updates sent to wrong destinations
5 Which of the following routes within an autonomous system does not include subnet information?

interior routes
*** system routes *
border routes
exterior routes
6
The administrator of the network depicted in the graphic would like to decrease the network's convergence time. How can this be accomplished?

disable split horizon on the routers
increase the update interval on the routers
*** change the RIP holddown timer to 96 seconds *
change the RIP holddown timer to 226 seconds
7 When does RIP send routing table updates? (Choose two.)

*** periodically, every 30 seconds *
periodically, every 60 seconds
periodically, every 90 seconds
if optionally configured, when topology changes occur (triggered-update) *
8
The graphic shows a network that is configured to use RIP routing protocol. Router2 detects that the link to Router1 has gone down. It then advertises the network for this link with a hop count metric of 16. Which routing loop prevention mechanism is in effect?

split horizon
error condition
hold-down timer
*** route poisoning *
count to infinity
9 The following line was displayed in the output of the show ip route command:
192.168.3.0/24 [100/80135] via 192.168.2.2, 00:00:30, Serial0/0
Based on this information, which routing protocol is enabled?

IP
RIP
*** IGRP *
IGP
OSPF
10 The following line was displayed in the output of the show ip route command:
192.168.3.0/24 [100/80135] via 192.168.2.2, 00:00:30, Serial0/0
What is the administrative distance of the routing protocol enabled?

30
80
100 *
135
80135
11
What actions will occur after RouterA loses connectivity to network 114.125.16.0? (Choose two.)

*** RouterB will include network 123.92.76.0 and 136.125.85.0 in its update to RouterA. *
During the next update interval, RouterB will send a RIP update out both ports that includes the inaccessible network.
During the next update interval, RouterC will send an update to RouterB stating that network 114.125.16.0 is accessible in 2 hops.
*** Router C will learn of the loss of connectivity to network 114.125.16.0 from RouterB. *
RouterB will include network 123.92.76.0 and 136.125.85.0 in its update to RouterC.
12
Which of the following is a correct IGRP configuration for the routers shown in the network diagram?

RouterA(config)# router igrp
RouterA(config-router)# network 192.168.0.0

RouterB(config)# router igrp 101
RouterB(config-router)# network 192.168.0.0

*** RouterA(config)# router igrp 45 *
RouterA(config-router)# network 192.168.1.0
RouterA(config-router)# network 192.168.2.0

RouterB(config)# router igrp 1
RouterB(config-router)# network 192.168.1.0
RouterB(config-router)# network 192.168.2.0

RouterA(config)# router igrp 1
RouterA(config-router)# network 192.168.2.0
RouterA(config-router)# network 192.168.3.0

RouterB(config)# router igrp 45
RouterB(config-router)# network 192.168.1.0
RouterB(config-router)# network 192.168.2.0
13 What do distance vector algorithms require each router in the network to send?

a partial routing table to each router in the LAN
a partial routing table to each router in the WAN
*** the entire routing table to each neighboring router *
the entire routing table to each router in the autonomous system
14 What happens to a static route entry in a routing table when the outgoing interface is not available?

*** The route is removed from the table.*
The router polls neighbors for a replacement route.
The route remains in the table because it was defined as static.
The router redirects the static route to compensate for the loss of the next hop device.
15 When a routing table update is received by a router in a distance vector network, which of the following occurs?

*** The hop count metrics for the enclosed routes are incremented. *
The update is forwarded to the gateway router for verification.
Path entries are checked for routing loops.
The hop count metrics for the enclosed routes are decremented.
Static routes are updated with the new information. 

16
Refer to the graphic. Assuming default settings are configured, which routing protocol has been configured on the router?

OSPF
RIP
*** IGRP *
BGP
Static
17 Which statements describe RIP? (Choose three.)

The maximum metric value is 255 hops.
*** The maximum metric value is 15 hops. *
*** Routing updates occur every 30 seconds. *
Routing updates occur every 90 seconds.
*** It is a distance vector routing protocol. *
It is a link state routing protocol.
18 When does a distance vector routing protocol set a hold-down timer on a route?

when the metric value of the route decreases
*** when the route is marked as inaccessible *
when the metric value for the route improves
when a regular update is received from a neighboring router
19 Which command will display RIP activity as it occurs on a router?

*** debug ip rip *
show ip route
show ip interface
show ip protocols
debug ip rip config
show ip rip database
20 Which of the following methods does split horizon use to reduce incorrect routing information?

Routing updates are split in half to reduce the update time.
*** Information learned from one source is not distributed back to that source. *
New route information must be learned from multiple sources to be accepted.
The time between updates is split in half to speed convergence.
New route information is suppressed until the system has converged.
21 The command show ip protocols was just issued and the following line was displayed in the output:
Gateway 192.168.2.1 Distance 100 Last Update 00:00:54
When should the next routing table update be received assuming the configuration uses default values?

6 seconds
24 seconds
30 seconds
*** 36 seconds *
90 seconds
22 A router has several classful networks in its routing table. If the router receives packets for a subnet that is not in its routing table and the ip classless command is disabled but a default route is defined, what will happen to the packets?

The packets will be forwarded using the default route.
The packets will be forwarded using a route for one of the major networks.
A nonreachable message will be returned to the source.
*** The packets will be discarded. *
A default route will be developed by the router.
23 Which statements describe load balancing when RIP is configured as the routing protocol? (Choose two.)

*** A router is allowed to take advantage of multiple best paths to a given destination. *
*** RIP uses the round robin approach in load balancing. *
RIP load balancing selects a single path to forward all data to the destination even though equal parallel paths exist.
RIP load balancing is based on bandwidth first and then the hop count.
Only one path to a destination can be statically assigned or dynamically calculated.
24 Which of the following functions are performed by a router as routing information travels through the network? (Choose two.)

advertise supported applications
*** identify new destinations *
calculate packet speed
verify network scalability
*** identify invalid networks *
25
Which of the following would be the correct command sequence to enable RIP on Router B for all connected networks?

1)RouterB# router rip
RouterB(router)# network 210.36.7.0
RouterB(router)# network 220.17.29.0
RouterB(router)# network 211.168.74.0 

2)RouterB(config)# router rip
RouterB(config-router)# network 198.16.4.0
RouterB(config-router)# network 211.168.74.0
RouterB(config-router)# network 199.84.32.0 

3)RouterB(config)# configure router rip
RouterB(config-router)# network 210.36.7.0
RouterB(config-router)# network 199.84.32.0
RouterB(config-router)# network 211.168.74.0 

4)RouterB(config)# router rip
RouterB(config-router)# network 198.16.4.0
RouterB(config-router)# network 210.36.7.0
RouterB(config-router)# network 211.168.74.0 

*** 5)RouterB(config)# router rip *
RouterB(config-router)# network 198.16.4.0
RouterB(config-router)# network 210.36.7.0
RouterB(config-router)# network 220.17.29.0
26 How would an administrator configure a static route for use if a primary route failed?

configure the route with a metric greater than the default value
configure the route and the router will activate it as needed
configure the route to activate by using the redistribute static command
*** configure the route with an administrative distance greater than the default value *     chapter 8   1 Which layer protocols provide reliability for IP when needed?

ICMP and ping
RIP and TTL
*** upper layer protocols *
lower layer protocols
Internet layer protocols
network access layer protocols
2 How does ICMP improve data transfer reliability in IP networks?

Each router in the path reads ICMP packets and uses the information to update routing tables.
ICMP can correct many network problems as they occur.
*** ICMP error messages are returned to the sending device when a packet is dropped by a router.*
ICMP packets report the intermediary devices that a packet passed through before failure occurred.
3 When a datagram is processed by a router on the path from source to destination, what happens to the value in the TTL field?"

It is increased by one.
*** It is decreased by one. *
It stays the same.
It is reset to 0.
Nothing.
4
If workstation 4 sends a message to workstation 2 and it is not delivered, which protocol will report this failure?

Internet Protocol
User Datagram Protocol
Transmission Control Protocol
*** Internet Control Message Protocol *
5 What does a router do if it is unable to deliver a packet to its destination? (Choose two.)

The router sends the original packet back to the source.
The router keeps the packet in its buffer until the next routing table update.
*** The router sends an ICMP "Destination Unreachable" message back to the source. *
The router sends out a broadcast message in search of the destination.
*** The router discards the original packet. *
6 Which two statements are true regarding ICMP? (Choose two.)

ICMP provides reliability for the TCP/IP protocol stack.
*** ICMP is a component of the TCP/IP protocol stack. *
*** ICMP notifies the sender that data transmission errors have occurred. *
ICMP is connection-oriented.
ICMP messages are propagated to all intermediate devices.
7 Which confirms the availability of a destination? (Choose two.)

The source issues an echo reply after receiving an echo request from the destination.
*** The destination returns an exact copy of the data sent by the source. *
*** The source sends an echo request and receives an echo reply. *
The source sends the data to the destination without receiving a reply.
The destination sends an echo request and receives an echo reply.
8
Workstation 1 sent a data packet to Workstation 4. It never arrived because Fa0/0 interface went down on Router C. How will the devices handle this failure?

Workstation 4 will send an error message to Router C and Workstation 1 that it did not receive the packet.
*** Router C will use ICMP to send a message back to Workstation 1 indicating that the packet could not be delivered. *
Router C discards the packet without providing notification to any device.
Router C uses ICMP to correct the failure and transmits the data to Workstation 4.
Workstation 1 will use ICMP to correct the problem and then notify Router C to continue the transmission.
9 Which three conditions must be met in order for host to host communication over an internetwork to occur on IP networks? (Choose three.)

The routing protocols configured on the source and destination networks must be the same.
*** A default gateway must be properly configured on the hosts and local networks. *
*** Intermediary devices, such as routers, must be present on the network and have knowledge of how to reach the destination network. *
The source and destination host subnet masks must match.
*** The IP addresses of the hosts must be in the same network or subnet as their respective gateway devices.*
10 Which devices along a data transmission path are notified by ICMP when delivery failures occur?

*** source devices only *
destination devices only
intermediary devices
source and destination devices
source, intermediary, and destination devices
11 Which condition could cause a fragmentation needed ICMP destination unreachable message to be sent?

A low bandwidth WAN link has become congested with IP traffic.
*** A packet is forwarded from a Token Ring network to an Ethernet network. *
A network is not reachable because of faulty routing information.
The address specified by the sending host is nonexistent.
12 Which type of message is generated by a host when the ping command is entered?

*** ICMP echo request *
ICMP echo reply
UDP echo request
UDP error message
13 Which of the following start the test of destination reachability?

*** echo request issued by source *
echo reply issued by source
echo request issued by destination
echo reply issued by destination
14 Which ICMP message is sent to a source host when the hop count to the destination is greater than the TTL value of a packet?

echo reply
timestamp reply
destination unreachable
*** time exceeded *
source quench
    chapter 9   1
Which ICMP message type notifies source hosts that a receiving host or network is not available?
time exceeded
redirect
*** destination unreachable
source quench
parameter problem
echo reply

2 

Which two are true regarding the debug commands? (Choose two.)
Debug commands may be issued from the user EXEC prompt.
*** The command undebug all will turn off all debug operations.
By default, the router sends the debug output and messages to the telnet session.
*** The high processor overhead incurred using debug may disrupt normal router operation.
The debug all command provides a summary view of router activity and can be used frequently for troubleshooting.
The show debugging command will display current events such as traffic on an interface and error messages generated by nodes on the network.

3 

Which of the following commands can be used to statically configure default routes? (Choose two.)
ip static-route
*** ip route
ip network-route
*** ip default-network
ip default-static

4 

At which OSI layer does the routing of email packets from the source network to the destination network occur?
application
session
transport
*** network

5 

When issuing the show interfaces serial1 command, a network administrator receives the output shown in the graphic. What are the possible causes of an increase in the number of input errors? (Choose three.)
There could be Layer 3 addressing problems.
*** There could be a problem with faulty telephone equipment.
*** The router hardware could be defective.
There is an incorrectly configured encapsulation on the interface.
*** There could be a problem with the cabling.

6 

Which two are true regarding the output shown in the graphic? (Choose two.)
Network 192.168.44.0 is 610 routers away from the source router.
*** A packet destined for host 192.168.80.24 will be forwarded out the Serial0 interface.
The subnet mask for the networks is 255.255.255.240.
*** The router is receiving IGRP updates through its serial interface.
This router is using three different routing protocols.

7 

The show interfaces command provides line and protocol status information. Which of the following conditions would never occur in the output of this command?
serial1 is up, line protocol is up
serial1 is up, line protocol is down
serial1 is down, line protocol is down
*** serial1 is down, line protocol is up
serial1 is administratively down, line protocol is down

8 

After issuing the command traceroute 192.168.4.2 from Router A, the following information is returned.
Tracing the route to Router_D (192.168.4.2)
1 Router_B (192.168.2.2) 16 msec 16 msec 16 msec
2 * * *
3 * * *
What can be concluded about the network shown in the graphic based on the output given?
Network 192.168.5.0 is missing from the routing table on Router A.
*** There is a problem with the connection between Router B and Router C.
Router C is not running CDP.
Some of the routers are non-Cisco devices.
Router B was not able to return ICMP TEMs to Router A.

9 

During the lookup process when forwarding a packet, a router checks its routing table for the best path to the destination. If a route has an administrative distance of 0, what does this indicate to the router?
The packet should be discarded.
The destination is unreachable.
*** The destination is a directly connected network.
The source of the update for that route is unreliable.

10 

Which of the following would be the default administrative distance of a static IP route that references the IP address of the next hop?
0
*** 1
5
20

11 

Which items would be displayed when the show ip protocol command is executed? (Choose three.)
*** sources of routing updates
*** networks being advertised
routing protocol up or down
configured routed protocols
Layer 2 status of the interface
*** update timer values

12 

A network administrator suspects that a network is not being included in the routing updates. Which command will provide information on when the next update is due and which networks are advertised in the update?
Router# show interfaces
Router# show controllers serial
*** Router# show ip protocols
Router# show ip route
Router# show running-config

13 

Which of the following lines from the show interfaces output would indicate a Layer 2 problem?
Serial1 is up, line protocol is up.
*** Serial1 is up, line protocol is down.
Serial1 is down, line protocol is down.
Serial1 is administratively down, line protocol is down.

14 

After issuing the show interfaces command, a technician notices the line "Serial1 is down, line protocol is down" in the output. Which of the following are possible reasons for this message output? (Choose three.)
There is a mismatch in the encapsulation type on both ends of the link.
*** A Layer 1 issue exists.
*** An interface problem exists.
The clockrate was not set during configuration.
*** There is no usable media for the protocol.
Keepalive messages are not being sent.

15

Refer to the network graphic. A packet needs to travel from Router F to Router A. Which path would be selected by the RIP routing protocol if the default metrics are used?
F, G, E, D, B, A
F, E, D, C, A
*** F, E, D, A
F, E, D, B, A

16 

Which command will verify the functionality of all seven layers of the OSI model on a network host?
ping
*** telnet
tracert
debug

17 

Why does a router build a routing table? (Choose two.)
*** to list available routes for forwarding data
to map local Layer 2 addresses to the remote Layer 3 destination address
to dynamically send periodic updates regarding the router's status
to prevent routing loops when redundant links are added to the network
*** to select the best path to a destination

18 

Which of the following are advantages of using a static route? (Choose three.)
*** secure operation
highly adaptable
low maintenance configuration
*** low processor overhead
*** precise control of path selection

19 

After issuing the show interfaces serial1 command, an administrator notices an increasing number of carrier transitions. What are the possible causes for this increase? (Choose two.)
There is an incorrect encapsulation configured on the interface.
*** There could be an interruption in the line by the service provider.
*** There is a faulty switch or CSU/DSU.
There is noise on the serial line.

20 

Which command will display routing table information about all known networks and subnetworks?
Router# show ip interfaces
Router# show ip connections
*** Router# show ip route
Router# show ip networks

21

Consider the RIP network shown in the diagram. Which entries would be listed in the routing table of Router A?
R 192.168.5.2[120/1] via 192.168.15.0, 00:00:09, Serial0
R 192.168.15.0[120/1] via 192.168.5.2, 00:00:13, Serial1
***  R 192.168.15.0[120/1] via 192.168.5.1, 00:00:13, Serial0
R 192.158.5.1 [120/1] via 192.168.5.2 00:00:29, Serial1
R 192.168.15.0 [120/1] via 192.168.5.2, 00:00:29, Serial1
R 192.158.5.1 [120/1] via 192.168.5.2 00:00:18, Serial0
R 192.168.15.2 [120/1] via 192.168.5.2, 00:00:18, Serial

22

The network administrator shown in the graphic can ping the E0 interface of the HAR router, but the telnet intranet.xyz.com command issued from her workstation fails to open a session with the intranet.xyz.com server. Which of the following could cause this problem? (Choose two.)
*** upper-layer application problems
*** domain name system problems
IP debugging problems
IP routing problems
ICMP connectivity problems

23

Refer to the network and routing table entries shown in the graphic. What will happen when a packet destined for network 192.66.7.0 is received by Router A?
It will be forwarded through interface S1.
It will be forwarded to the default route.
It will be directed toward the Internet.
*** It will be discarded.

Which three correctly pair a routing metric with its description? (Choose three.)
	hop count - the number of routers traversed to reach a destination
	*bandwidth - the amount of time it takes a packet to travel a link
	*load - the amount of activity on a link
	*delay - the link speed
	reliability - the error rate on a link

When the  show cdp neighbors command is issued from Router C, which devices will be displayed in the output?
	D, SWH-2
	A, B, D
	SWH-1, SWH-2
	*B, D
	SWH-1, A, B
	A, B, D, SWH-1, SWH-2
A network technician has discovered that a router in the network can no longer be reached. The technician attempts to verify Layer 1 functionality, but is unable to physically inspect the cables. Which command can be used to determine the type of cable connected to the router?
	Router# show interfaces
	*Router# show controllers serial
	Router# show ip route
	Router# show ip protocol
	Router# show version
	Router# show running-config
The network administrator is using a PC to access a router via the router console port. Both the PC and the router are powered on and a cable has been connected between them. However, a session cannot be established. Which steps might fix this problem? (Choose two.)
	**Verify the cable is properly connected at each end.
	Reseat the network card in the PC.
	**Verify the cable is the correct type.
	Verify that a password has been set on the console line.
	Check the transceiver for link lights.
	Reseat the console card on the router.
Which of the following is a problem at the physical layer of the OSI model?
	incorrect file formatting
	incorrect encapsulation on a serial interface
	incorrect routing protocol  chapter 10 1 

A computer programmer is developing software that requires a reliable stream of data. Which protocol can be used in the software design to eliminate the need for building error detection and recovery into the application program?
*** TCP
IP
ICMP
UDP
HTTP

2 

Which of the following would an administrator do to defend against a denial of service SYN flooding attack? (Choose two.)
Hide the source of incoming IP addresses.
*** Decrease the connection timeout period.
Synchronize all host communication.
*** Increase the connection queue size.
Flood the network with false SYN requests.

3 

What is the purpose of Positive Acknowledgment and Retransmission (PAR)?
PAR allows the presentation layer to request that data be resent in a format the destination host can process.
PAR provides a mechanism for the receiving device to request that all segments be retransmitted if one segment is corrupt.
*** PAR helps ensure that a number of data segments sent by one host are received by another host before additional data segments are sent.
PAR is used to renegotiate the window size during the synchronization process.

4 

Which of the following describe types of port numbers that can be represented in the header of TCP and UDP segments? (Choose two.)
connectionless
*** well-known
operational
*** dynamic
static

5 

Why is TCP considered a connection-oriented protocol?
It establishes a virtual connection between hosts using a two-way handshake.
It uses IP to guarantee delivery of packets between hosts.
*** It requires hosts to go through a synchronization process prior to data transmission.
It creates a connection that depends on application layer protocols for error detection.

6 

What is the purpose of using port numbers in the transport layer?
to identify the segment as being either TCP or UDP
to provide reliability during data transport
to identify the interface port number used by the router when forwarding data
*** to track multiple conversations that occur between hosts

7 

What does TCP use to ensure reliable delivery of data segments?
upper layer protocols
lower layer protocols
*** sequence numbers
port numbers

8 

Which authority has control over the assignment of port numbers for applications?
IEEE
*** IANA
InterNIC
Software Developers Association

9 

Which of the following describes how TCP adds reliability to communication? (Choose two.)
*** Hosts using TCP set up virtual circuits at the beginning of the transmission using the three-way handshake.
Hosts using TCP set the error-checking frequency at the beginning of the transmission and maintain this frequency for the duration.
*** The receiving host acknowledges that it has received the expected number of segments and requests additional data.
The receiving host acknowledges any incorrectly received data and requests retransmission of damaged or missing bytes.

10 

Which address is dynamically assigned by the source host when forwarding data?
destination IP address
destination port number
default gateway address
source IP address
*** source port number

11 

Which of the following are functions of the TCP protocol? (Choose three.)
translation of data
*** synchronization
path determination
*** flow control
data representation
*** reliability

12 

Which transport layer unit of information places the port number in the header?
data
*** segment
packet
frame
bit

13 

What is the purpose of the three-way handshake that occurs between hosts using TCP as the transport layer protocol?
to determine the number of packets that can be sent before an acknowledgment is required
to allow a host to forward data to a router
*** to establish a round trip connection between sender and receiver before data is transferred
to provide a mechanism for data encryption and compression

14 

At which point in the transmission process are segments numbered?
when received
when reassembling
*** before transmission
while negotiating window size

15

What type of segment and data is shown in the graphic?
a UDP segment carrying e-mail traffic
a TCP segment carrying FTP traffic
an IP segment carrying FTP traffic
a UDP segment carrying web traffic
*** a TCP segment carrying web traffic
an IP segment carrying e-mail traffic

16 

When a host receives a data segment, what allows the host to determine which application should receive the segment?
IP source address
IP destination address
PAR
sliding window
*** port number
SYN packet

17 

Which statement is true regarding the TCP protocol?
Flow control at the transport layer is provided by adding a sequence number to each segment.
*** A sliding window allows for communicating devices to negotiate the amount of unacknowledged data that can be sent.
A window size of 1 would require a receiving device to send ACK 1 after the Segment 1 has been received.
TCP is used by sending hosts to segment large data files prior to transmission while IP is used by receiving host to reassemble the smaller segments.

18 

What is used by both TCP and UDP when creating a segment?
IP address
MAC address
IPX address
*** socket or port number
acknowledgment number
sequence number

19 

What is used by UDP to determine if the data or header has been transferred without corruption?
lower layer protocols
*** checksum
PAR
sliding window
acknowledgment and retransmission
IP

20 

How are originating source port numbers assigned during the data encapsulation process?
assigned manually by the user when starting the application
*** assigned dynamically by the source host
assigned by the routing protocol during the lookup process
assigned by the destination host during session negotiation

21 

Which of the following protocols uses UDP for transport layer services?
SMTP
HTTP
*** DNS
FTP

22 

Which of the following determines the amount of data that can be sent without an acknowledgment when sending a TCP segment?
segment number
priority number
*** window size
value in the length field
value in the port field
acknowledgment number

23 

During the encapsulation process, in which order are the IP address, MAC address, and port number assigned when the router is establishing communication with the TFTP server?
IP address, MAC address, port number
MAC address, IP address, port number
*** port number, IP address, MAC address
port number, MAC address, IP address

24 

Which of the following describes a type of denial of service attack designed to exploit the normal function of the TCP three-way handshake?
*** A host sends a packet with a spoofed source IP address.
A host sends a packet with an incorrect destination IP address.
A source sends a packet containing a garbled header.
A host sends an oversized packet that fills the memory buffers of the destination host.
A host sends a packet that contains a virus.
A host sends a packet that contains a worm.
	*incorrect cable type     chapter 11   1 

Assuming the ACL in the graphic is correctly applied to an interface, what effect will the ACL have on network traffic?
All traffic to network 172.16.0.0 will be denied.
All TCP traffic will be permitted to and from network 172.16.0.0.
*** All telnet traffic from the 172.16.0.0 network to any destination will be denied.
All port 23 traffic to the 172.16.0.0 network will be denied.
All traffic from the 172.16.0.0 network will be denied to any other network.

2

Create a standard ACL that will deny traffic from 192.5.5.25 to the 210.93.105.0 network but will allow traffic from all other hosts. (Choose two.)
Router(config)# access-list 22 deny 192.5.5.25 0.0.0.0

Router(config)# access-list 22 deny host 192.5.5.25 0.0.0.0
Router(config)# access-list 22 permit any any

*** Router(config)# access-list 22 deny 192.5.5.25 0.0.0.0
Router(config)# access-list 22 permit any

*** Router(config)# access-list 22 deny host 192.5.5.25
Router(config)# access-list 22 permit any

Router(config)# access-list 22 deny 192.5.5.0 0.0.0.255
Router(config)# access-list 22 permit any

3 

The following commands were entered on a router:
Router(config)# access-list 2 deny 172.16.5.24
Router(config)# access-list 2 permit any
What can be concluded about this set of commands?
The access list statements are misconfigured.
All nodes on 172.16.0.0 will be denied access when these statements are applied.
*** The default wildcard mask, 0.0.0.0 is assumed.
The default wildcard mask 255.255.255.255 is assumed.

4 

ACL statements operate in sequential, logical order. If a condition match is true, the rest of the ACL statements are not checked. If all of the ACL statements are unmatched, what happens to the packet?
The packets will be placed in a buffer and forwarded when the ACL is removed.
The packets will be sent to the source with an error notification message.
The implicit permit any statement placed at the end of the list will allow the packets to flow through uninhibited.
*** The implicit deny any statement placed at the end of the list will cause the packets to be dropped.

5 

Choose the command that will correctly configure a standard ACL.
Router# access-list 10 permit any
Router# access-list 101 permit any
*** Router(config)# access-list 10 permit any
Router(config)# access-list 101 permit any
Router(config)# access-list 10 permit any any

6

Select the commands that will apply the ACL in the diagram to filter traffic going to the 192.168.2.0 network.
Router1# configure terminal
Router1(config)# access-list 10 in E0

Router1(config)# interface ethernet 0
Router1(config-if)# access-list 10 in

Router2(config)# interface s1
Router2(config-if)# ip access-group 10 out

*** Router2(config)# interface ethernet 0
Router2(config-if)# ip access-group 10 out

Router1(config)# interface ethernet 0
Router1(config-if)# ip access-group 10 out

Router2# configure terminal
Router2(config)# access-group 10 out

7 

Which statements are true regarding the meaning of the access control list wildcard mask 0.0.0.7? (Choose two.)
The first 29 bits of a supplied IP address will be ignored.
*** The last three bits of a supplied IP address will be ignored.
The first 32 bits of a supplied IP address will be matched.
*** The first 29 bits of a supplied IP address will be matched.
The last four bits of a supplied IP address will be matched.

8 

The router IOS tests each condition statement in an ACL in sequence. Once a match is made, which of the following occurs? (Choose two.)
The entire ACL must be deleted and recreated.
*** The accept or reject action is performed.
The packet is forwarded to the next hop.
*** The remaining ACL statements are not checked.
The router goes through the list again to verify that a match has been made.

9 

Select the correct statements about extended ACLs. (Choose two)
Extended ACLs use a number range from 1-99.
Extended ACLs end with an implicit permit statement.
*** Extended ACLs evaluate the source and destination addresses.
*** Port numbers can be used to add greater definition to an ACL.
Multiple ACLs can be placed on the same interface as long as they are in the same direction.

10 

Which of the following are reasons to use ACLs? (Choose three.)
*** to provide a basic level of security for network access
to speed up network performance by filtering priority packets
*** to preserve bandwidth by providing a mechanism for traffic flow control
to decide which packets are forwarded or blocked at the router console port
*** to screen certain hosts to either allow or deny access to part of a network
to allow all packets passing through the router access to all parts of the network

11 

Which of the following parameters can ACLs use to filter traffic? (Choose three.)
packet size
*** protocol suite
*** source address
*** destination address
source router interface
destination router interface

12 

Which statement is true regarding wildcard masks?
The wildcard mask and subnet mask perform the same function.
The wildcard mask is always the inverse of the subnet mask.
*** A "0" in the wildcard mask identifies IP address bits that must be checked.
A "1" in the wildcard mask identifies a network or subnet bit.

13 

Select the statements that describe ACL processing of packets. (Choose three.)
*** An implicit deny any rejects any packet that does not match any ACL statement.
*** A packet can either be rejected or forwarded as directed by the statement that is matched.
A packet that has been denied by one statement can be permitted by a subsequent statement.
A packet that does not match the conditions of any ACL statements will be forwarded by default.
*** Each statement is checked only until a match is detected or until the end of the ACL statement list.
Each packet is compared to the conditions of every statement in the ACL before a forwarding decision is made.

14

An access list has been created that will deny the host 204.204.7.89 access to an ftp server located at 196.6.13.254.
access-list 111 deny tcp 204.204.7.89 0.0.0.0 196.6.13.254 0.0.0.0 eq 21
access-list 111 permit tcp any any
Which of the following groups of commands will place this ACL in the proper location?
Router2(config)# interface s0/0
Router2(config-if)# ip access-group 111 in

Router2(config)# interface fa0/0
Router2(config-if)# ip access-group 111 out

*** Router2(config)# interface fa0/0
Router2(config-if)# ip access-group 111 in

Router3(config)# interface fa0/0
Router3(config-if)# ip access-group 111 in

Router3(config)# interface s0/1
Router3(config-if)# ip access-group 111 out

Router3(config)# interface fa0/0
Router3(config-if)# ip access-group 111 out

15 

Choose the commands that will correctly configure a standard ACL. (Choose two.)
*** Router(config)# access-list 97 permit host 192.5.5.1
*** Router(config)# access-list 32 permit 210.93.105.3 0.0.0.0
Router(config)# access-list 148 permit 201.100.11.2 0.0.0.0
Router(config)# access-list 107 permit host 192.5.5.1 213.45.27.0 0.0.0.255 eq 23
Router(config)# access-list 10 permit tcp 192.5.5.1 0.0.0.255 201.100.11.0 0.0.0.255 eq 80

16

Assuming the ACL in the graphic is correctly applied to an interface, what effect will this ACL have on network traffic?
*** Host 192.168.15.4 will be denied ftp access to any destination, but will be permitted all other access.
All ftp traffic to host 192.168.15.4 will be denied.
All traffic from that interface will be denied.
No traffic will be denied because a "permit" statement does not exist in this ACL.

17

Create an access list that will prevent only the host 192.5.5.148 from accessing a web site located at 210.93.105.50.
access-list 10 deny tcp host 192.5.5.148 host 210.93.105.50 eq 80
access-list 10 permit tcp any any

access-list 10 deny tcp 192.5.5.148 0.0.0.0 210.93.105.50 0.0.0.0 eq 23
access-list 10 permit tcp any any

*** access-list 100 deny tcp 192.5.5.148 0.0.0.0 210.93.105.50 0.0.0.0 eq 80
access-list 100 permit tcp any any

access-list 100 deny tcp 192.5.5.148 0.0.0.255 210.93.105.50 0.0.0.255 eq 80
access-list 100 permit tcp any any

access-list 100 deny tcp host 192.5.5.148 255.255.255.255 210.93.105.50 255.255.255.255 eq 80
access-list 100 permit tcp any any

18 

A router that has two Ethernet interfaces and one serial interface is configured to route both IP and IPX. What is the maximum number of IP ACLs that can be configured to filter packets on this router?
1
2
3
6
*** 12

19 

Which of the following matches an ACL identification number with the correct protocol?(Choose three.)
0 - standard IP
*** 99 - standard IP
*** 100 - extended IP
210 - extended IP
678 - extended IPX
*** 888 - standard IPX

chapter pre final

DOESNT KNOW WHAT THE %%% IS ???? PLZZZ EMAIL THEM TO ME!!
--------------------------

1.	Host name resolution allows for the use of an alphanumeric name to
identify network devices. Select the answer that displays the correct
configuration syntax for creating a host name.
o	Router(config)# ip host Fontana 200.100.50.5

2.	Which command will display the status of the carrier detect signal and
keepalive messages for a router running CDP?
o	Router# show cdp interface

3.	Which of the following are necessary for basic network communication to
occur between hosts that will run such applications as Telnet, web browsers,
and e-mail? (Choose three.)
o	TCP/IP must be installed and properly configured on each device.
o	A default gateway must be configured for datagrams to travel outside of
the LAN.
o	To ensure accurate delivery, a router must be configured and accessible by
hosts on the network.

4.	The following access list has been created to prevent traffic from host
204.204.7.122 from accessing the 201.100.11.0 network.
access-list 22 deny host 204.204.7.122
access-list 22 permit any
Which group of commands will properly place this access list so that this
host is denied access only o the 201.100.11.0 network?
o	RouterB(config)# interface fa0/0
o	RouterB(config-if)# ip access-group 22 out

5.	How many Telnet sessions can take place simultaneously on a router
running a standard edition of the IOS?
o	5

6.	What can be determined from the partial output of the show ip route
command displayed below? (Choose two.)
o	The next update will be in 16 seconds.
o	The administrative distance is 120 and the metric is 1.

7.	Which of the following are true regarding the setup configuration mode?
(Choose three.)
o	To abort the setup mode, use the CTRL+C keys.
o	To enter setup mode, use the privileged mode setup command.
o	A router that does not find a valid configuration file during the boot
process will start the system configuration dialog.

8.	A network administrator needs to configure a routing protocol that will
use bandwidth and delay when making routing decisions. Which of the
following commands must be configured on Router2 so those metric values will
be used when determining the best path?(Choose two.)
o	Router2(config)# router igrp 200
o	Router2(config-router)# network 192.5.5.0
o	Router2(config-router)# network 201.100.11.0

9.	Which statements are true regarding VTY passwords? (Choose two.)
o	All VTY lines do not need to use the same password.
o	A VTY password is required to establish telnet sessions.

10.	Refer to the topology shown. Which commands must be configured in order
to enable two-way communication between the hosts connected to the E0
interface of the Utah router and hosts connected to the E0 interface of the
o	Idaho(config)# ip route 172.31.1.0 255.255.255.0 172.31.2.1
o	Idaho(config)# ip route 0.0.0.0 0.0.0.0 s0
o	Utah(config)# ip route 0.0.0.0 0.0.0.0 s0

11.	Refer to the above graphic. When using RIP as the routing protocol, how
would Chicago use load balancing to route packets to New York? (Choose two.)
o	by forwarding packets over paths of equal cost
o	by cycling packets through interfaces and routes following the same
pattern (Router 1, 2, 3) each time

12.	Routers have different types of memory. Choose the answer that describes
ROM.
o	initializes the code used to boot the router

13.	Given the above topology, which of the following statements are true?
(Choose two.)
o	If RouterA receives a packet destined for 192.168.3.146, it will be
forwarded out interface Ethernet 0.
o	If RouterA receives a packet destined for 10.5.27.15, it will be forwarded
out interface Serial 1.

14.	The routers shown in the graphic are running IGRP and sending updates
about all of their networks. After the network converged, traffic destined
for Router4 was received on the E0 interface of Router2. Which route will
have the lowest metric?
o	Router2 to Router3 to Router4

15.	Which of the following would cause the "Message Of The Day" banner to
appear? (Choose three.)
o	telnetting into the router
o	using the Aux port to check the current configuration
o	using the console port to check the current configuration

16.	A network administrator trying to deny Telnet traffic from the 192.5.5.0
network to the 201.100.11.0 network entered the commands shown in the
graphic. When monitoring the network, the administrator noticed that the
Telnet packets are still passing between those networks. What is the cause?
o	The access list has not been assigned to an interface.

17.	What information is displayed by the show cdp neighbors detail command
that is not displayed by the show cdp neighbors command?
o	IP addresses

18.	What types of messages are sent periodically by devices configured for
CDP?
o	advertisements

19.	Routers in an OSPF network collect and advertise what information to
other routers in the network? (Choose three.)
o	the names of neighboring routers
o	the status or router interfaces
o	the total path cost of the links to neighboring routers

20.	Which of the following functions are initiated by the router
configuration files? (Choose three.)
o	making decisions regarding the best path
o	controlling the flow of traffic in and out of the router
o	specifying the correct set up and use of routed and routing protocols

21.	Which of the following will add a TFTP server as a fallback source for a
router to load an IOS image?
o	Router# config t
o	Router(config)# boot system tftp c2500-d-l.120-9.bin 163.150.9.31
o	Router(config)# exit
o	Router# copy run start

22.	Which statement about datagram life is true?
o	Each router decreases the TTL value by one until it reaches zero. The
datagram is then discarded and a destination unreachable message is sent to
the source.

23.	An administrator has made routing protocol changes to a router's
configuration. To ensure that the changes are implemented, the active
configuration is saved and the router is reloaded. After the router has
initialized, the output on the screen displays "Would you like to enter the
initial configuration dialog?[yes/no]:"
Why did this dialog appear?
o	The configuration register was set to ignore NVRAM.

24.	When would the ROM monitor mode be used? (Choose two.)
o	modifying the IOS image stored in Flash
o	performing the bootstrap process

25.	What are the major characteristics of a wide area network? (Choose
three.)
o	connect devices separated by wide geographical areas
o	uses serial connections to access bandwidth
o	common carriers are needed for connections

26.	Which of the following are characteristics of the Open Shortest Path
First (OSPF) routing protocol? (Choose two.)
o	functions as a link state routing protocol
o	floods routing updates as topology changes occur

27.	Which of the following are functions of a router? (Choose three.)
o	packet switching
o	segmentation of local area networks
o	selection of best path based on a logical addressing

28.	Which of the following WAN connection services typically use synchronous
communications? (Choose two.)

29.	leased line

30.	packet-switched

31.	Refer to the output from the show ip route command. What can be
concluded from the output of this router command?
o	There are two equal cost paths to network 1.0.0.0.

32.	Why is having an interface description useful?
o	The interface desciption helps identify distant network connections.

33.	The administrator knows that port E0 on router B connects to a small LAN
without any routers. Which command can be executed on router B to conserve
bandwidth on port E0?
o	passive-interface E0

34.	In the configuration register value 0x2104, which value represents the
boot field setting?
o	4

35.	Which of the following statements about the TTL of a datagram are true?
(Choose three.)
o	The TTL value matches the maximum hop count defined by the routing
protocol.
o	When the TTL value reaches 0, the packet is discarded.
o	A router decreases the TTL value by one as the router forwards the packet.

36.	Which of the following are basic rules that should be followed when
creating and applying access lists?
(Choose three.)
o	One access list per protocol per direction.
o	There is an implicit deny at the end of all access lists.
o	Statements are processed sequentially from top to bottom until a match is
found.

37.	If the config-register on a router is set to 0x2102, where is the first
place the router will look for boot system commands?
o	NVRAM

38.	A client needs to access more than one network service running on a
local server. Which of the following pieces of information will be used by
the client to communicate with the appropriate network service on the
server. (Choose four.)
o	IP address of the server
o	MAC address of the server
o	destination port number
o	source port number

39.	Which command is used to redirect debug information to a device that is
connected though a Telnet session?
o	Router# terminal monitor

40.	RouterB loses connectivity to network 172.17.22.0. During the next
update interval, RouterB sends an update to RouterA signifying that network
172.17.22.0 is inaccessible. RouterA adds the changes received from RouterB
to its routing table. Approximately at the same time, RouterC sends an
update to RouterA stating that network 172.17.22.0 is up. Which of the
following is true regarding the described situation? (Choose two.)
o	Router A will not accept the information from RouterC if split horizon is
enabled.
o	RouterA will remove network 172.17.22.0 from its routing table if the
network is inaccessible after the flush timer has expired.

41.	Which command will produce the output shown in the graphic?
o	show cdp neighbors

42.	Of the eight network users on the Human Resources department LAN, one
cannot connect to the file server.
The user's PC has successfully booted but can not see the network. What
should be checked first?
o	the PC network interface card LEDs

43.	When must a router serial interface be configured with the clock rate
command?
o	when no other device is supplying a clock signal to the link

44.	Which of the following are true regarding route metrics? (Choose three.)
o	The more factors that make up a metric, the greater the flexibility to
tailor network operations.
o	Load and reliability are dynamic metrics used by IGRP.
o	Ticks delay, MTU, and cost are metrics used by routing protocols.

45.	The following IGRP configuration was typed in for RouterB:
RouterB(config)# router igrp 100
RouterB(config-router)# network 192.168.2.0
RouterB(config-router)# network 192.169.3.0
After several update periods, a technician notices that RouterB is not
receiving updates from all routers shown in the diagram. Which of the
following would correct this error?
o	RouterB(config)# router igrp 100
o	RouterB(config-router)# no network 192.169.3.0
o	RouterB(config-router)# network 192.168.3.0

46.	Refer to the network graphic. A packet needs to travel from Router_F to
Router_A. Which path would be selected by the IGRP routing protocol if the
default metrics are used?
o	F,E,D,B,A

47.	The host shown in the graphic has issued the ICMP request packet shown.
What information does the host require, and which ICMP message should be
sent in reply? (Choose two.)
o	The host requires the default gateway IP address.
o	The reply should be a router advertisement message.

48.	Which of the following commands would indicate if a boot system
statement is configured on a router?
(Choose three.)
o	show startup-config
o	show running-config
o	show config

49.	Which of the following could be placed in the destination port field of
a UDP segment from a client machine?
o	53

50.	The following line was displayed in the output of the show ip route
command.
I 192.168.3.0/24 [100/80135] via 192.168.2.2, 00:00:30, Serial0/0
What is the value of the composite metric?
o	80135

51.	A network administrator can establish a remote session to a host using
the Router> telnet 192.168.1.1 command but is unsuccessful when using the
Router> telnet Boston command to connect to the same interface. Which of the
following could be the problem? (Choose two.)
o	The ip host table on the router is not configured.
o	Domain name services are not available.

52.	Assume OSPF is being used on all routers. What happens when the link
between Router1 and Router2 goes down? (Choose two.)
o	Link-state advertisements are flooded.
o	All routers note the change and adjust routes.

53.	Which of the following devices are used in WANs and help define the WAN
physical layer? (Choose three.)
o	communication servers
o	routers
o	modems

54.	Which of the following is true regarding the protocol data unit (PDU)
shown in the graphic?
o	It is a server response to a client request for Telnet services.

chapter final

Which of the following could describe the devices labeled "?" in the graphic? (Choose three.)

**DCE
**CSU/DSU
LAN switch
**modem
hub

-------------------------------------------------
Router A and Router B have been correctly configured to use RIP as a dynamic routing protocol and all intefaces on Router A and Router B are reporting "interface is up, line protocol is up" status. RIP is then configured on Router C using the following commands:

RouterC(config)# router rip
RouterC(config-router)# network 192.168.4.0
RouterC(config-router)# network 172.16.0.0

If no additional routing is configured on Router A, Router B, and Router C, what will be the result?

**Networks 192.168.12.0/24, 192.168.4.0/24, and 172.16.0.0/16 will be unreachable from Router A.

Router A will have no knowledge of network 192.168.12.0/24, but will have routes to networks 192.168.4.0/24 and 172.16.0.0/16.

All networks shown in the graphic will be reachable by Router A, Router B, and Router C.

Networks 192.168.4.0/24 and 172.16.0.0/16 will be unreachable from Router A and Router B.

--------------------------------------------------------
The following access list has been correctly applied to a router interface:

access-list 52 deny 172.30.65.52
access-list 52 permit any

Which of the following statements are true about this ACL? (Choose three.)

This is an invalid ACL because the wildcard mask is missing from the command.

**A wildcard mask of 0.0.0.0 is assumed for 172.30.65.52.

This is an extended IP access list.

**All traffic from 172.30.65.51 will be permitted.

**This is a standard IP access list.
---------------------------------------------------------	

Refer to the graphic. Assuming default metrics are used and the network is fully converged, which path will the IGRP routing protocol use to send a packet from Router A to Router F?

A, D, E, F
**A, B, D, E, F
A, C, D, E, G, F
A, B, D, E, G, F
---------------------------------------------------------

Neither router in the graphic has a host table or DNS available. The interfaces and passwords have been correctly configured. Which of the following commands will initiate a Telnet session? (Choose two.)

ATL> connect CHI
ATL> telnet CHI
**ATL# 192.168.4.2
ATL# connect ATL
**CHI# telnet 192.168.4.1
CHI# telnet ATL
--------------------------------------------------------

What will occur if the command service password-encryption is entered on a router? (Choose two).

It will allow only the user EXEC mode password to be encrypted.
It will set an MD5 hashing algorithm on all unencrypted passwords.
**It will apply a weak encryption to all unencrypted passwords.
It will set the enable secret password to be encrypted.
It will apply an MD5 hashing algorithm to encrypt the console and telnet passwords.
**It will configure the user EXEC mode, telnet, and enable passwords as encrypted.
---------------------------------------------------------	

A network administrator must configure a serial interface with an IP address. The configuration must also identify the remote site to which the interface is connected. Which set of commands will meet these requirements?

Chicago(config)# description San Jose T1
Chicago(config)# interface serial0/0
Chicago(config-if)# ip address 192.168.204.9 255.255.255.252

**Chicago(config)# interface serial0/0
**Chicago(config-if)# ip address 192.168.204.9 255.255.255.252
**Chicago(config-if)# description San Jose T1

Chicago(config)# interface serial0/0
Chicago(config-if)# ip address 192.168.204.9 netmask 255.255.255.252
Chicago(config-if)# description San Jose T1

Chicago(config)# interface serial0/0
Chicago(config-if)# ip address 192.168.204.9 255.255.255.252
Chicago(config-if)# remote site San Jose T1

Chicago(config)# interface serial0/0
Chicago(config-if)# ip address 192.168.204.9 255.255.255.252
Chicago(config-if)# interface description San Jose T1

-----------------------------------------------------

A network administrator has enabled RIP on routers B and C in the network diagram. Which of the following commands will prevent RIP updates from being sent to Router A?

A(config)# router rip
A(config-router)# passive-interface S0/0

B(config)# router rip
B(config-router)# network 192.168.25.48
B(config-router)# network 192.168.25.64

A(config)# router rip
A(config-router)# no network 192.168.25.32

**B(config)# router rip
**B(config-router)# passive-interface S0/0

A(config)# no router rip
-----------------------------------------------------

Which of the following describe Telnet on a router? (Choose two.)

**Simultaneous incoming Telnet sessions can be hosted by a router.
Telnet is the most basic testing mechanism available.
A Telnet session can only be initiated in privileged EXEC mode.
**Five separate Telnet lines are specified by the configuration line vty 0 4.
Telnet is classified as a network layer protocol.

--------------------------------------------------

Which commands will show the status and IP address of all interfaces on a router? (Choose two.)

**show protocols
show ip protocols
show version
**show interfaces
show ip ports

---------------------------------------------------

Which router command will generate the router output shown in the graphic?

show arp
show protocols
show interface FastEthernet0/0
show interfaces
**show hardware

---------------------------------------------------

Which of the following are valid boot system commands? (Choose two.)

Router(config)# boot system ram
**Router(config)# boot system rom
Router(config)# boot system IOS flash
Router(config)# boot system flash c2600-d-mz.121-3 192.168.10.5
**Router(config)# boot system tftp c1700-l-mz.131-2 172.16.24.7

---------------------------------------------------

During initial router bootup the following line appears:

"NVRAM invalid, possibly due to write erase."

What are two possible reasons for this result? (Choose two.)

The startup-config file was not saved to RAM before reboot.
The IOS has been erased.
**The router has not been configured.
**The startup-config file cannot be located.
The router will not enter initial configuration dialog.

--------------------------------------------------

While planning an IOS upgrade, the administrator issues the show version command. Based on the output in the graphic, what is the current IOS boot location?

RAM
**NVRAM
Flash
ROM

--------------------------------------------------

Which statements are true regarding setup mode? (Choose three.)

Press Ctrl-z to terminate setup mode.
**Enter a question mark (?) for help at any point.
Press Spacebar to accept the default settings.
Use setup mode to enter complex protocol features.
**Press Enter to accept the default settings.
**Press Ctrl-c to abort configuration dialog.

--------------------------------------------------

Which router components and operations are correctly described? (Choose two.)

ROM - stores the backup configuration file
RAM - loads the operating system
**NVRAM - stores the configuration file
Flash - executes diagnostics at bootup
**POST - runs diagnostics on hardware modules
DRAM - loads the bootstrap

--------------------------------------------------

access-list 199 deny tcp 178.15.0.0 0.0.255.255 any eq 23
access-list 199 permit ip any any

Assuming this ACL is correctly applied to a router interface, which statements describe traffic on the network? (Choose two.)

All FTP traffic from network 178.15.0.0 will be permitted.
**All Telnet traffic destined for network 178.15.0.0 will be denied.
Telnet and FTP will be permitted from all hosts on network 178.15.0.0 to any destination.
**Telnet will not be permitted from any hosts on network 178.15.0.0 to any destination.
Telnet will not be permitted to any host on network 178.15.0.0 from any destination.

------------------------------------------------------

Refer to the graphic. Communication is needed between the LAN connected to the fa0/0 interface of the Kansas router and the fa0/0 interface of the Maine router. All hosts on those LANs also need connectivity to the Internet. Which commands will allow this communication? (Choose three).

**Kansas(config)# ip route 192.168.6.0 255.255.255.0 172.18.64.2
Kansas(config)# ip route 192.168.6.0 255.255.255.0 s0/1
**Kansas(config)# ip route 0.0.0.0 0.0.0.0 s0/1
Maine(config)# ip route 192.168.6.0 255.255.255.0 172.18.64.1
**Maine(config)# ip route 0.0.0.0 0.0.0.0 s0/1
Maine(config)# ip route 172.16.32.0 255.255.255.0 172.18.64.2

-------------------------------------------------------

Due to a security violation, the router passwords must be changed. What information can be learned from the following configuration entries? (Choose two.)

Router(config)# line vty 0 3
Router(config-line)# password c13c0
Router(config-line)# login

The entries specify three Telnet lines for remote access.
**The entries specify four Telnet lines for remote access.
The entries set the console and Telnet password to "c13c0".
Telnet access will be denied because the Telnet configuration is incomplete.
**Access will be permitted for Telnet using "c13c0" as the password.

-------------------------------------------------------

What are some reasons to change the configuration register setting? (Choose two.)

**to force the system to ignore the configuration file stored in NVRAM
to monitor password changes
to change the POST sequence
to force the router to boot the IOS from NVRAM
**to force the system into ROM monitor mode

-------------------------------------------------------

A network administrator issues the erase startup-config command on a configured router with the configuration register set to 0x2102 and observes the following output:

Erasing the nvram filesystem will remove all files! Continue? [Confirm]
[OK]
Erase of nvram: complete

If the router unexpectedly loses power after this sequence, what will occur when power is restored?

The router will enter ROM monitor mode upon completion of the power-on self test (POST).
The router will load the last known valid configuration file.
The router will enter Rx-boot mode.
**The router will prompt the user to enter setup mode or to continue without entering setup mode.

-------------------------------------------------------

Which of the following are true regarding the use of login banners? (Choose two.)

The message is only displayed in privileged EXEC mode.
**The message can be seen by everyone who accesses the router.
Good morning is an appropriate message to display.
**The banners should display warning messages.
The banners should identify circuits and other devices connected to the router.

-------------------------------------------------------

Which router component stores the information that is displayed by the show ip route command?

CPU
Flash
NVRAM
**RAM

---------------------------------------------------------

What information can be learned during the initial router bootup? (Choose two.)

the configuration register value
**the number and types of interfaces installed
**the router model and the amount of memory that is available
the amount of memory required to load the IOS and configuration
the number of interfaces with connected cables

-------------------------------------------------------

Which of the following describes CDP? (Choose three.)

**provides information on directly connected Cisco routers that have CDP enabled
**can only be configured between Cisco devices
used for debugging Layer 4 connectivity issues
**should be disabled on non-locally managed ports
presents a potential security risk

------------------------------------------------------

What can a network administrator do to recover from a lost router password?

perform a reload or reset
telnet from another router and issue the show running-config command to view the password
**boot the router to ROM monitor mode and configure the router to ignore NVRAM when it initializes
boot the router to bootROM mode and enter the b command to load the IOS manually

------------------------------------------------------

A network administrator wishes to load a configuration file from a TFTP server into NVRAM on a router. Which of the following methods will create a startup-config file in NVRAM that matches the contents of the configuration file on the TFTP server?

**Copy the configuration file from a TFTP server using the command copy tftp startup-config.
Copy the configuration file from a TFTP server using the command copy <filename< startup-config.
Copy the file to RAM from a console connection using the copy tftp running-config command. Then reload the router to use the new configuration.
Paste the configuration file to the command line of the router while in global configuration mode. Then issue the copy startup-config running-config command.

------------------------------------------------------

Which of the following are primary functions of a router? (Choose two.)

**packet switching
microsegmentation
domain name resolution
**path selection
flow control

------------------------------------------------------

Which of the following are true regarding an interface description? (Choose three.)

It is a message that is displayed at login.
**It does not affect the operation of the router.
It contains the circuit identifiers of the interface by default.
**It could allow support personnel to better understand the scope of an interface problem.
**It could identify the purpose and location of the interface.
It wastes bandwidth and slows down interface problem resolution.

------------------------------------------------------

Which ACL can be applied in the outbound direction of Serial 0/0 on router B in the graphic to allow all IP traffic from LAN A to the Internet, allow Web traffic from LAN B to the Internet, and deny all other traffic to the Internet?

access-list 98 permit 192.168.2.0 0.0.0.255 any
access-list 98 permit tcp 10.90.3.0 0.0.0.255 any eq www

access-list 125 permit ip 192.168.2.0 0.0.0.255 any
access-list 125 permit tcp 10.90.3.0 0.0.0.255 any eq www

access-list 132 permit ip 192.168.2.0 0.0.0.255 any
access-list 132 permit tcp 10.90.3.0 0.0.0.255 any eq www
access-list 132 permit ip any any

**access-list 156 permit ip 192.168.2.0 0.0.0.255 any
**access-list 156 permit ip 10.90.3.0 0.0.0.255 any eq www

------------------------------------------------------- 

The following access list has been created to prevent traffic from host 172.23.40.36 from accessing the 192.168.34.0 network.

access-list 44 deny host 172.23.40.36
access-list 44 permit any

Refer to the graphic. Which group of commands will properly place the access list so that the host is denied access only to network 192.168.34.0?

Rome(config)# interface fa0/0
Rome(config-if)# ip access-group 44 in

Rome(config)# interface s0/1
Rome(config-if)# ip access-group 44 out

Tokyo(config)# interface s0/0
Tokyo(config-if)# ip access-group 44 in

**Tokyo(config)# interface fa0/0
**Tokyo(config-if)# ip access-group 44 out

--------------------------------------------------------

Which of the following are true statements regarding IGRP and RIP? (Choose two.)

**IGRP uses a combination of different metrics for path selection.
RIP is a proprietary protocol developed by Cisco.
RIP has the ability to scale to large networks.
**IGRP has the ability to scale to large networks.

--------------------------------------------------

In what order will the initial startup routine of a router locate and load the IOS if the config-register setting is 0x2102 and there are no boot system commands present in the startup-config file?

Flash, ROM, TFTP server
RAM, Flash, NVRAM
Flash, TFTP server, ROM
ROM, TFTP server, Flash
Flash, NVRAM, RAM
**ROM, Flash, TFTP server

--------------------------------------------------

What will occur when the following ACL is applied inbound to both FastEthernet interfaces of Router A in the graphic?

access-list 125 permit tcp 192.168.2.0 0.0.0.255 10.90.3.0 0.0.0.255 eq 23
access-list 125 permit tcp 10.90.3.0 0.0.0.255 192.168.2.0 0.0.0.255 eq 23
access-list 125 permit tcp 192.168.2.0 0.0.0.255 any eq www

**Workstations A and B will be able to Telnet to each other. Workstation A will be allowed to access Web servers on the Internet, while Workstation B will be denied Internet Web access.
Workstations A and B will be able to Telnet to each other. All other traffic will be denied.
The ACL will have no effect because it should be applied in the outbound direction on the FastEthernet interfaces.
The ACL will deny all traffic because of the implied deny ip any any statement at the end of the ACL.

---------------------------------------------------

Which of the following commands will correctly configure an extended ACL? (Choose two).

Router(config)# access-list 18 permit tcp host 192.168.73.3 eq 25
**Router(config)# access-list 102 permit tcp 10.43.0.0 0.0.255.255 any eq 80
**Router(config)# access-list 187 permit tcp host 192.168.42.34 172.29.0.0 0.0.255.255 eq 23
Router(config)# access-list 99 permit host 10.217.32.3
Router(config)# access-list 128 permit tcp host 192.168.100.31 eq 23

----------------------------------------------------

Refer to the graphic. Which command will create a standard ACL that will apply to outbound traffic on interface Fa0/0 of router A and will deny IP traffic from any host on network 172.16.34.0/24 that is destined for network 192.168.5.0/24 while allowing all other IP traffic?

access-list 2 deny 172.16.34.0 0.0.0.0
access-list 2 permit any

**access-list 33 deny 172.16.34.0 0.0.0.255
**access-list 33 permit any

access-list 42 deny 172.16.34.0
access-list 42 permit any

access-list 56 deny tcp 172.16.34.0
access-list 56 permit ip any

------------------------------------------------------

Refer to the network and routing table entries shown in the graphic. How much time will elapse before Router A expects to receive another update from Router B?

5 seconds
13 seconds
**17 seconds
25 seconds
65 seconds
90 seconds

-----------------------------------------------------

Refer to the graphic. Which series of commands will create static routes that will allow Router A and Router B to deliver packets destined for LAN A and LAN B, and direct all other traffic to the Internet?

RouterA(config)# ip route 10.90.3.0 255.255.255.0 192.168.3.2
RouterB(config)# ip route 192.168.2.0 255.255.255.0 192.168.3.1
RouterB(config)# ip route 0.0.0.0 0.0.0.0 s0/0

RouterA(config)# ip route 10.90.3.0 255.255.255.0 192.168.3.2
RouterA(config)# ip route 0.0.0.0 0.0.0.0 192.168.3.2
RouterB(config)# ip route 192.168.2.0 255.255.255.0 192.168.3.1

RouterA(config)# ip route 0.0.0.0 0.0.0.0 192.168.3.2
RouterB(config)# ip route 192.168.2.0 255.255.255.0 192.168.3.1
RouterB(config)# ip route 172.20.20.4 255.255.255.252 s0/0

**RouterA(config)# ip route 0.0.0.0 0.0.0.0 192.168.3.2
**RouterB(config)# ip route 192.168.2.0 255.255.255.0 192.168.3.1
**RouterB(config)# ip route 0.0.0.0 0.0.0.0 s0/0

-----------------------------------------------

Which of the following describe Ethernet and serial interfaces of a router? (Choose two.)

They are enabled by default.
**They may be administratively disabled by using the shutdown command.
**They must be configured with an IP address and subnet mask in order to forward packets.
They must be configured with an IP address and a clockrate in order to forward packets.
They may be administratively disabled by using the no shutdown command. 

-----------------------------------------------

Which of the following statements are true regarding routed protocols? (Choose two.)

**They provide enough information in the Layer 3 address to allow a packet to be forwarded from one network to another.
**They carry user data between networks.
They allow routers to share information about networks and their proximity to each other.
They are used by routers to maintain routing tables.
RIP and IGRP are routed protocols.

------------------------------------------------

If a PC does not have network connectivity to a router, which router port can be used to establish communication?

console
**Ethernet
serial
VTY

------------------------------------------------

Router A is directly connected to the networks shown in the graphic and has a default route that points to Router B. All interfaces are active and properly addressed. However, when the workstation on network 172.16.4.0/24 sends a packet to destination address 172.16.201.5, it is discarded by Router A. What can be a reason for this result?

**The ip classless command is not enabled on Router A.
Router B is in a different autonomous system than Router A.
Routers A and B are using different routing protocols.
Router A has no route in its routing table that includes the address 172.16.201.5.

------------------------------------------------

Which of the following prevent successful loading of the Cisco IOS from flash memory? (Choose two.)

**a configuration register set at 0x2102
a missing startup-configuration file
a boot system command not present in the startup-config file
an incorrect configuration register setting
**a boot field set to 2

------------------------------------------------

Which two steps describe how to create a functional physical connection between a router console and a terminal? (Choose two.)

Use a crossover cable to connect the terminal serial port to the router console port.
Use a rollover cable to connect the terminal NIC to the router console port.
**Use an RJ-45 to DB-9 adapter on the terminal serial port to connect to the cable going to the router console.
Use a transceiver to connect a straight-through cable to the router console port.
Use a straight-through cable to connect the router console port to the terminal NIC.
**Use a rollover cable to connect from a terminal serial port to the router console port.

-----------------------------------------------

Refer to the graphic. A network administrator has a console connection to Router A. Pings to Router B are successful, but pings to Routers C and D fail. What is the first step in troubleshooting the problem?

Use the show cdp neighbors detail command from router A to gather information about all Cisco routers in the network.
Use the traceroute command to discover exactly which link in the network is down.
Use an extended ping from router A to each router in the network.
**Use the show interfaces command from a Telnet session on router B to check the connection to router C.

-----------------------------------------------

Based on this partial output of the show ip route command, which routing protocol is configured on the router?

I 172.16.3.0/24 [100/80135] via 172.16.2.2, 00:00:27, Serial0/0

RIP v1
RIP v2
**IGRP
EIGRP
OSPF
IGP

------------------------------------------------

Assuming the following ACL is correctly applied to a router interface, what can be concluded about this set of commands? (Choose two.)

Router(config)# access-list 165 deny tcp 192.28.115.0 0.0.0.255 172.20.0.0 0.0.255.255 eq 23
Router(config)# access-list 165 permit ip any any

This is a standard IP access list that denies network 192.28.115.0 Telnet access to the 172.20.0.0 network.
All Telnet traffic destined for 172.20.0.0 from any network will be denied access.
**Network 192.28.115.0 is denied Telnet access to the 172.20.0.0 network.
Network 172.20.0.0 is denied Telnet access to the 192.28.115.0 network.
**All FTP and HTTP traffic destined for 172.20.0.0 will be permitted access.

------------------------------------------------

What could a Cisco support technician learn from the IOS filename c2600-d-mz.121-3? (Choose three.)

**the format of the file
the RAM memory requirements of the file
**the version number of the file
the size of the file
**the device platform of the file

------------------------------------------------

Which of the following are correct statements verified by the router output shown in the graphic? (Choose two.)

Layer 3 connectivity exists between BigCity and the devices in the Device ID column.
**Layer 2 connectivity exists between BigCity and the devices in the Device ID column.
All devices shown in the Device ID column use the TCP/IP protocol suite.
All devices shown in the Device ID column can be pinged from BigCity.
**All devices listed in the Device ID column are directly connected to BigCity.

------------------------------------------------

What are the results of setting the boot field bits in the configuration register to "0000"? (Choose two.)

The startup-config file will be ignored at bootup.
The router will load the IOS from Flash.
**The router will enter ROM monitor mode upon reload.
The router will enter boot ROM mode and have limited capabilities.
**The administrator can enter the b command to manually boot the IOS.

2 Comments »

  1. terima kasih banyak atas segala bantuan, saat ilmu digratiskan motto yang hebat

    Comment by romy — December 14, 2007 @ 5:12 am | Reply

  2. I am loving it!! Will come back again – taking you feeds also, Thanks.

    Comment by Jack Shepard — June 28, 2010 @ 9:40 pm | Reply


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