640-821 by Cisco Valid Free Exam Practice Test

Question 1

How will a Cisco 2600 series router respond if the conditions listed below exist during the boot process?
1) The IOS image in flash is missing.
2) No network connectivity is available.
3) The router fallback IOS image is corrupt.

A. The router will enter the prompted setup dialog. B. The router will enter global configuration mode. C. The router will enter ROM monitor mode. D. The boot will hang until an IOS is available. E. The router will enter setup mode.

Correct Answer: C

Question 2

The following commands are entered on the router:
Burbank(config)# enable secret fortress
Burbank(config)# line con 0
Burbank(config-line)# login
Burbank(config-line)# password n0way1n
Burbank(config-line)# exit
Burbank(config)# service password-encryption
What is the purpose of the last command entered?

A. to encrypt the enable secret password B. to require the user to enter an encrypted password during the login process C. to prevent the vty, console, and enable passwords from being displayed in plain text in the configuration files D. to provide login encryption services between hosts attached to the router

Correct Answer: C

Question 3

Which three statements are true about the operation of a full-duplex Ethernet network?
(Choose three.)

A. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting. B. The host network card and the switch port must be capable of operating in full-duplex mode. C. A dedicated switch port is required for each full-duplex node. D. There are no collisions in full-duplex mode. E. Ethernet hub ports are preconfigured for full-duplex mode.

Correct Answer: B,C,D

Question 4

Refer to the exhibit. Why was this message received?

A. No enable secret password has been set. B. The login command has not been set on CON 0. C. No enable password has been set. D. The login command has not been set on the VTY ports. E. No VTY password has been set. F. No console password has been set.

Correct Answer: E

Question 5

A network associate needs to configure a router by connecting a remote computer to the router through the router auxiliary port. Which two statements describe the hardware required to make the connection to the router? (Choose two.)

A. The auxiliary port must be connected to a modem. B. The technician needs an RJ-45 to DB25 adapter. C. The auxiliary port must be connected to an Ethernet LAN. D. The technician needs an Ethernet transceiver.

Correct Answer: A,B

Question 6

Which Cisco IOS command identifies the system hardware and the IOS currently running on a router?

A. show running-config B. show processes C. show startup-config D. show controllers E. show version

Correct Answer: E

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 maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask?

A. 16 B. 15 C. 14 D. 31 E. 32 F. 30

Correct Answer: F

Question 9

This graphic shows some common router ports. Which port can be used for a WAN T1 connection?

A. AUI B. Serial 0 C. Console D. BRI

Correct Answer: B

Question 10

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

A. show protocols B. show stacks C. show network protocols D. show flash E. show version

Correct Answer: A

Cisco Introduction to Cisco Networking Technologies - 640-821 Exam Practice Test