Introduction to Cisco Networking Technologies (640-821) Free Practice Test

Question 1

Which statements accurately describe CDP? (Choose three.)

A. CDP is an IEEE standard protocol.

B. CDP can discover Cisco devices that are not directly connected.

C. CDP is a network layer protocol.

D. CDP is a datalink layer protocol.

E. CDP is a Cisco proprietary protocol.

F. CDP can discover directly connected neighboring Cisco devices.

Correct Answer: D,E,F

Question 2

Which two statements describe the operation of the CSMA/CD access method? (Choose two.)

A. After a collision, the station that detected the collision has first priority to resend the lost data.

B. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.

C. After a collision, all stations involved run an identical backoff algorithm and then synchronize with each other prior to transmitting data.

D. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.

E. The use of hubs to enlarge the size of collision domains is one way to improve the operation of the CSMA/CD access method.

F. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.

Correct Answer: B,D

Question 3

Which command displays the status of the network layer protocols active on a router?

A. show version

B. show stacks

C. show protocols

D. show flash

E. show network protocols

Correct Answer: C

Question 4

According to the information provided in the exhibit, from where was the currently running version of IOS loaded?

A. TFTP server

B. ROM

C. NVRAM

D. flash

Correct Answer: B

Question 5

DRAG DROP
drag drop

Correct Answer:

Question 6

A network administrator is connecting PC hosts A and B directly through their Ethernet interfaces as shown in the graphic. Ping attempts between the hosts are unsuccessful.
What can be done to provide connectivity between the hosts? (Choose two.)

A. The subnet masks should be set to 255.255.255.0.

B. A default gateway needs to be set on each host.

C. The subnet masks should be set to 255.255.255.192.

D. The hosts must be reconfigured to use private IP addresses for direct connections of this type.

E. A rollover cable should be used in place of the straight-through cable

F. A crossover cable should be used in place of the straight-through cable.

Correct Answer: A,F

Question 7

lab

Correct Answer:

Shore(config)# interface eth0
Shore(config-if)# ip address 192.168.195.113 255.255.255.240
Shore(config-if)# no shutdown
Shore(config-if)# exit
Shore(config)# interface ser0
Shore(config-if)# ip address 192.168.195.33 255.255.255.240
Shore(config-if)# no shutdown
Shore(config-if)# exit
Shore(config)# router rip
Shore(config-router)# network 192.168.195.0
Shore(config-router)# end
Shore# copy run start

Question 8

What is the difference between the Cisco router IOS commands show cdp neighbor detail and show cdp entry?

A. The show cdp neighbor detail command shows all neighbor information, while show cdp entry displays only one line of output for each neighbor.

B. The show cdp entry command shows neighbor information for specific neighbors only, while show cdp neighbor detail lists each neighbor with detailed output on each.

C. The show cdp entry command shows neighbor information for all neighbors with one line of output for each, while show cdp neighbor detail lists each neighbor with detailed output on each.

D. The show cdp neighbor detail command shows neighbor information for a single neighbor only, while show cdp entry displays detailed output on each neighbor known.

Correct Answer: B

Question 9

After the shutdown command has been issued on the serial 0/0 interface, what will be displayed when the show interface serial 0/0 command is issued by the administrator?

A. Serial0/0 is up, line protocol is up

B. Serial0/0 is up, line protocol is down

C. Serial0/0 is administratively down, line protocol is administratively down

D. Serial0/0 is administratively down, line protocol is down

E. Serial0/0 is down, line protocol is down

F. Serial0/0 is down, line protocol is up

Correct Answer: D

Question 10

What is the default configuration register setting on most Cisco routers?

A. 0x2210

B. 0x2142

C. 0x2012

D. 0x2104

E. 0x2102

Correct Answer: E

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Cisco Introduction to Cisco Networking Technologies (640-821) Free Practice Test