CCNA Exploration 1: Chapter 11 Exam Answers

CCNA Exploration 1: Chapter 11 Exam Answers

1. Which three terms correctly define the forms of help available within the Cisco IOS? (Choose three.)

hot keys

context-check

context-sensitive

structured check

command override

command syntax check

2. What command is used to change the default router name to Fontana?

Router# name Fontana

Router# hostname Fontana

Router(config)# name Fontana

Router(config)# hostname Fontana

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.
 
Refer to the exhibit. The output is shown for the show ip route command executed on Router A. What does the IP address 192.168.2.2 represent?

Gateway for the 192.168.1.0 network

Gateway for the 192.168.3.0 network

IP assigned to the serial port on Router A

IP assigned to the serial port on Router B

5. In a Cisco router, when do changes made to the running-configuration take effect?

after a system restart

as the commands are entered

when logging off the system

when the configuration is saved to the startup-configuration

6.
 
Refer to the exhibit. A technician applies the configuration in the exhibit to a clean router. To verify the configuration, the technician issues the show running-config command in the CLI session with the router. What lines should the technician expect to see in the router output from the show running-config command?

enable password class
line console 0
password ccna

enable secret cisco
enable password class
line console 0
password ccna

enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0
enable password class
line console 0
password ccna

enable secret cisco
enable password 7 14141E0A1F17
line console 0
password 7 020507550A

enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0
enable password 7 14141E0A1F17
line console 0
password 7 020507550A

7.
 
The connection between routers B and C has been successfully tested. However, after rebooting router C, the administrator noticed the response time between networks 10.10.3.0 and 10.10.4.0 is slower. Ping between the two routers is successful. A trace route indicates three hops from router B to router C. What else can be done to troubleshoot the problem?

Ping router B S0/1 connection from router C.

Trace the connection between router B to router C S0/1.

Issue a show ip route command in router B to verify routing is enabled.

Issue a show interfaces command on router C.

8.
 
Refer to the exhibit. A network administrator on HostA has problems accessing the FTP server. Layer three connectivity testing was successful from HostA to the S1 interface of RouterB. Which set of commands will allow the network administrator to telnet to RouterB and run debug commands?

RouterB(config)# enable secret class
RouterB(config)# line vty 0 4
RouterB(config-if)# login

RouterB(config)# enable secret class
RouterB(config)# line vty 0 2
RouterB(config-vty)# password cisco
RouterB(config-vty)# login

RouterB(config)# enable secret class
RouterB(config)# line vty 0
RouterB(config-line)# password cisco
RouterB(config-line)# login

RouterB(config)# enable secret class
RouterB(config)# line aux 0
RouterB(config-line)# password cisco
RouterB(config-line)# login

RouterB(config)# enable secret class
RouterB(config)# line aux 0
RouterB(config-vty)# password cisco
RouterB(config-vty)# login

9. A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a router to manage it. Which access method should be chosen?

Telnet

Console

AUX

SSH

10. Users in the network are experiencing slow response time when doing file transfers to a remote server. What command could be issued to determine if the router has experienced any input or output errors?

show running-config

show startup-config

show interfaces

show ip route

show version

show memory

11. Which combination of keys would be used at the CLI prompt to interrupt a ping or traceroute process?

Ctrl-C

Ctrl-P

Ctrl-R

Ctrl-Shift-6

Ctrl-Z

12.
 
Refer to the exhibit. Which names correctly identify the CLI mode represented by the prompt for Switch-East4#? (Choose two.)

line configuration mode

user executive mode

global configuration mode

privileged executive mode

interface configuration mode

enable mode

13.
 
Refer to the exhibit. What command will place the router into the correct mode to configure an appropriate interface to connect to a LAN?

UBAMA# configure terminal

UBAMA(config)# line vty 0 4

UBAMA(config)# line console 0

UBAMA(config)# interface Serial 0/0/0

UBAMA(config)# interface FastEthernet 0/1

14.

Refer to the exhibit. What additional command is required to allow remote access to this switch?

NA-SW1(config-if)# no shutdown

NA-SW1(config)# enable password password

NA-SW1(config)# ip default-gateway address

NA-SW1(config-if)# description description

15. When network services fail, which port is most often used to access a router for management purposes?

AUX

Ethernet

Console

Telnet

SSH

16. In a Cisco device, where is the IOS file stored prior to system startup?

RAM

ROM

Flash

NVRAM

17.

Refer to the exhibit. A student is responsible for the IP addressing, configuration and connectivity testing of the network shown in the graphic. A ping from host B to host C results in a destination unreachable but a ping from host B to host A was successful. What two reasons could account for this failure based on the graphic and partial router output for the Dallas router? (Choose two.)

The host A is turned off.

The Fa0/0 interface on Dallas is shutdown.

The LAN cable is disconnected from host B.

The S0/0/1 IP address of Dallas is improperly configured.

The Fa0/0 interface on Dallas is in a different subnet than host B.

The clock rate is missing on the serial link between Dallas and NYC.

18. On a Cisco router, which interface would be used to make the initial configuration?

   

Option 1 Console

19. Immediately after a router completes its boot sequence, the network administrator wants to check the routers configuration. From privileged EXEC mode, which of the following commands can the administrator use for this purpose? (Choose two.)

show flash

show NVRAM

show startup-config

show running-config

show version

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CCNA Exploration 1: Chapter 10 Exam Answers

CCNA Exploration 1: Chapter 10 Exam Answers

1.
 
Refer to the exhibit. Assume that all devices are using default settings. How many subnets are required to address the topology that is shown?

1

3

4

5

7

2. A company is planning to subnet its network for a maximum of 27 hosts. Which subnet mask would provide the needed hosts and leave the fewest unused addresses in each subnet?

255.255.255.0

255.255.255.192

255.255.255.224

255.255.255.240

255.255.255.248

3.

Refer to the exhibit. A network administrator has decided to use packet capture software to evaluate all traffic from the student subnet on the way to the Internet. To ensure that all packets are captured, what network device should be used to connect the monitoring station to the network between R1 and R2?

router

hub

switch

wireless access point

4.
 
Refer to the exhibit. Which three statements are true about the exhibited topology? (Choose three.)

Hosts B and C are in the same subnet.

Five broadcast domains are present.

Host B is using a crossover cable to connect to the router.

Four broadcast domains are present.

Five networks are shown.

Host B is using a rollover cable to connect to the router.

5. Which three statements are true about the role of routers in the network? (Choose three.)

They propagate broadcasts.

They enlarge collision domains.

They segment broadcast domains.

They interconnect different network technologies.

Each router interface requires a separate network or subnet.

They maintain a common frame format between LAN and WAN interfaces.

6.
 
Refer to the exhibit. What destination IP address will PC1 place in the header for a packet destined for PC2?

192.168.1.1

192.168.2.1

192.168.2.2

192.168.3.1

192.168.3.54

7. Which option identifies the primary interface which would be used for initial configuration of a Cisco router?

AUX interface

Ethernet interface

serial interface

console interface

8. Which subnet mask would be assigned to the network address of 192.168.32.0 to provide 254 useable host addresses per subnetwork?

255.255.0.0

255.255.255.0

255.255.254.0

255.255.248.0

9. To establish a console connection from a computer to a Cisco router, which cable wiring option would be used?

crossover cable

straight through cable

rollover cable

V.35 cable

10. What type of network cable is used between a terminal and a console port?

cross-over

straight-through

rollover

patch cable

11.
 
Refer to the exhibit. How many subnets are required to support the network that is shown?

2

3

4

5

12. What are three common methods for setting a UTP Ethernet port to MDI or MDIX operation? (Choose three.)

direct configuration of the device

cable color code association

cable selection and configuration

use of cable testers to determine pinouts

the enabling of the mechanism to electrically swap the transmit and receive pairs

the automatic detection and negotiating of MDI/MDIX operation of the port

13.
 
Refer to the exhibit. A network technician has been allocated the 192.168.1.0/24 private IP address range for use in the network that shown in the exhibit. Which subnet mask would be used to meet the host requirements for segment A of this internetwork?

255.255.255.128

255.255.255.192

255.255.255.224

255.255.255.240

255.255.255.248

14.
 
Refer to the exhibit. Based on the IP configuration shown, what would be the result of Host A and Host B attempting to communicate outside the network segment?

both host A and B would be successful

host A would be successful, host B would fail

host B would be successful, host A would fail

both Host A and B would fail

15. Which three types of connectors are commonly associated with Cisco’s V.35 serial cables? (Choose three.)

RJ 11

DB 60

Winchester 15 pin

DB 9

smart serial

RJ 45

16. A network administrator is required to use media in the network that can run up to 100 meters in cable length without using repeaters. The chosen media must be inexpensive and easily installed. The installation will be in a pre-existing building with limited cabling space. Which type of media would best meet these requirements?

STP

UTP

coaxial

single-mode fiber

multimode fiber

17.
 
Refer to the exhibit. A student is setting up a home network primarily used for extensive file transfers, streaming video, and gaming. Which network device is best suited to these types of activities in the topology shown?

wireless access point

router

hub

switch

18. Which device is used to create or divide broadcast domains?

hub

switch

bridge

router

repeater

19.

Refer to the exhibit. A student working in the lab selects a cable that is wired as shown. Which connection types can successfully be made with this cable? (Choose two.)

connecting a PC to a router’s console port

connecting two routers together via their fast ethernet ports

connecting two switches together at gigabit speeds

connecting a PC to a switch at Gigabit Ethernet speeds

connecting two devices with the same interface type at Fast Ethernet speeds

20. What are two common methods for setting a UTP Ethernet port to MDI or MDIX operation? (Choose two.)

cable color code association

cable selection and configuration

use of cable testers to determine pinouts

the automatic detection and negotiating of MDI/MDIX operation of the port

the enabling of the mechanism to electrically swap the transmit and receive pairs

21. How many host addresses may be assigned on each subnetwork when using the 130.68.0.0 network address with a subnet mask of 255.255.248.0?

30

256

2046

2048

4094

4096

22.
 
Refer to the exhibit. Which three statements identify the type of cabling that would be used in the segments that are shown? (Choose three.)

Segment 1 uses backbone cabling.

Segment 1 uses a patch cable.

Segment 3 uses patch cabling.

Segment 3 uses vertical cabling.

Segment 3 uses horizontal cabling.

Segment 4 uses vertical cabling.

23. What does the term "attenuation" mean in data communication?

loss of signal strength as distance increases

time for a signal to reach its destination

leakage of signals from one cable pair to another

strengthening of a signal by a networking device

24. What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.)

greater distances per cable run

lower installation cost

limited susceptibility to EMI/RFI

durable connections

greater bandwidth potential

easily terminated

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CCNA Exploration 1: Chapter 9 Exam Answers

CCNA Exploration 1: Chapter 9 Exam Answers

1. What three primary functions does data link layer encapsulation provide? (Choose three.)

addressing

error detection

frame delimiting

port identification

path determination

IP address resolution

2. What are the two most commonly used media types in Ethernet networks today? (Choose two.)

coaxial thicknet

copper UTP

coaxial thinnet

optical fiber

shielded twisted pair

3. After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data?

the device involved in the collision with the lowest MAC address

the device involved in the collision with the lowest IP address

any device in the collision domain whose backoff timer expires first

those that began transmitting at the same time

4.
 
Refer to the exhibit. What command was executed on a host computer to produce the results shown?

route PRINT

arp –a

arp –d

netstat

telnet

5. Which of the following is a drawback of the CSMA/CD access method?

Collisions can decrease network performance.

It is more complex than non-deterministic protocols.

Deterministic media access protocols slow network performance.

CSMA/CD LAN technologies are only available at slower speeds than other LAN technologies.

6.
 
Refer to the exhibit. Host_A is attempting to contact Server_B. Which statements correctly describe the addressing Host_A will generate in the process? (Choose two.)

A packet with the destination IP of Router_B.

A frame with the destination MAC address of Switch_A.

A packet with the destination IP of Router_A.

A frame with the destination MAC address of Router_A.

A packet with the destination IP of Server_B.

A frame with the destination MAC address of Server_B.

7. What is the primary purpose of ARP?

translate URLs to IP addresses

resolve IPv4 addresses to MAC addresses

provide dynamic IP configuration to network devices

convert internal private addresses to external public addresses

8. Ethernet operates at which layer of the TCP/IP network model?

application

physical

transport

internet

data link

network access

9. Which two features make switches preferable to hubs in Ethernet-based networks? (Choose two.)

reduction in cross-talk

minimizing of collisions

support for UTP cabling

division into broadcast domains

increase in the throughput of communications

10. Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?

A random delay is used to ensure a collision-free link.

A random delay value for each device is assigned by the manufacturer.

A standard delay value could not be agreed upon among networking device vendors.

A random delay helps prevent the stations from experiencing another collision during the transmission.

11.
 
Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?

No collisions will occur on this link.

Only one of the devices can transmit at a time.

The switch will have priority for transmitting data.

The devices will default back to half duplex if excessive collisions occur.

12. What are three functions of the upper data link sublayer in the OSI model? (Choose three.)

recognizes streams of bits

identifies the network layer protocol

makes the connection with the upper layers

identifies the source and destination applications

insulates network layer protocols from changes in physical equipment

determines the source of a transmission when multiple devices are transmitting

13. What does the IEEE 802.2 standard represent in Ethernet technologies?

MAC sublayer

Physical layer

Logical Link

Control sublayer

Network layer

14.

Refer to the exhibit. Which option correctly identifies content that the frame data field may contain?

preamble and stop frame

network layer packet

physical addressing

FCS and SoF

15. Host A has an IP address of 172.16.225.93 and a mask of 255.255.248.0. Host A needs to communicate with a new host whose IP is 172.16.231.78. Host A performs the ANDing operation on the destination address. What two things will occur? (Choose two.)

Host A will change the destination IP to the IP of the nearest router and forward the packet.

Host A will broadcast an ARP request for the MAC of its default gateway.

A result of 172.16.225.0 will be obtained.

Host A will broadcast an ARP request for the MAC of the destination host.

A result of 172.16.224.0 will be obtained.

A result of 172.16.225.255 will be obtained.

16. In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?

Host B can transmit immediately since it is connected on its own cable segment.

Host B must wait to receive a CSMA transmission from the hub, to signal its turn.

Host B must send a request signal to Host A by transmitting an interframe gap.

Host B must wait until it is certain that Host A has completed sending its frame.

17. Convert the binary number 10111010 into its hexadecimal equivalent. Select the correct answer from the list below.

85

90

BA

A1

B3

1C

18. Which of the following describe interframe spacing? (Choose two.)

the minimum interval, measured in bit-times, that any station must wait before sending another frame

the maximum interval, measured in bit-times, that any station must wait before sending another frame

the 96-bit payload padding inserted into a frame to achieve a legal frame size

the 96-bit frame padding transmitted between frames to achieve proper synchronization

the time allowed for slow stations to process a frame and prepare for the next frame

19. Which statements correctly describe MAC addresses? (Choose three.)

dynamically assigned

copied into RAM during system startup

layer 3 address

contains a 3 byte OUI

6 bytes long

32 bits long

20. When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?

The hosts return to a listen-before-transmit mode.

The hosts creating the collision have priority to send data.

The hosts creating the collision retransmit the last 16 frames.

The hosts extend their delay period to allow for rapid transmission.

21. Ethernet operates at which layers of the OSI model? (Choose two.)

Network layer

Transport layer

Physical layer

Application layer

Session layer

Data-link layer

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