Managing a Cisco Internetwork - Managing a Cisco Internetwork

You copy a configuration from a network host to a router's RAM. The configuration looks correct, yet it is not working at all. What could the problem be?

A.	You copied the wrong configuration into RAM.
B.	You copied the configuration into flash memory instead.
C.	The copy did not override the shutdown command in running-config.
D.	The IOS became corrupted after the copy command was initiated.

Answer: Option C

Explanation:

Since the configuration looks correct, you probably didn't screw up the copy job. However, when you perform a copy from a network host to a router, the interfaces are automatically shut down and need to be manually enabled with the no shutdown command.

A network administrator wants to upgrade the IOS of a router without removing the image currently installed. What command will display the amount of memory consumed by the current IOS image and indicate whether there is enough room available to hold both the current and new images?

A.	show version
B.	show flash
C.	show memory
D.	show buffers

Answer: Option B

Explanation:

The show flash command will provide you with the current IOS name and size and the size of flash memory.

You need to gather the IP address of a remote switch that is located in Hawaii. What can you do to find the address?

A.	Issue the show ip arp command on the router connected to the switch.
B.	Issue the show ip route command on the router connected to the switch.
C.	Issue the show cdp neighbor command on the router connected to the switch.
D.	Issue the show cdp neighbors detail command on the router connected to the switch.

Answer: Option D

Explanation:

Although option A is certainly the "best" answer, unfortunately option D will work just fine and your boss would probably prefer you to use the show cdp neighbors detail command.

Which command will show you the IOS version running on your router?

A.	sh IOS
B.	sh flash
C.	sh version
D.	sh running-config

Answer: Option C

Explanation:

The best answer is show version, which shows you the IOS file running currently on your router. The show flash command shows you the contents of flash memory, not which file is running.

The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?

A.	RAM should be erased and the router restarted.
B.	Flash should be erased and the router restarted.
C.	NVRAM should be erased and the router restarted.
D.	The new configuration should be entered and saved.

Answer: Option C

Explanation:

Before you start to configure the router, you should erase the NVRAM with the erase startup-config command and then reload the router using the reload command.

You save the configuration on a router with the copy running-config startup-config command and reboot the router. The router, however, comes up with a blank configuration. What can the problem be?

A.	You didn't boot the router with the correct command.
B.	NVRAM is corrupted.
C.	The configuration register setting is incorrect.
D.	The newly upgraded IOS is not compatible with the hardware of the router.

Answer: Option C

Explanation:

If you save a configuration and reload the router and it comes up either in setup mode or as a blank configuration, chances are you have the configuration register setting incorrect.

What does the command o/r 0x2142 provide?

A.	It is used to restart the router.
B.	It is used to bypass the configuration in NVRAM.
C.	It is used to enter ROM Monitor mode.
D.	It is used to view the lost password.

Answer: Option B

Explanation:

The default configuration setting is 0x2102, which tells the router to load the IOS from flash and the configuration from NVRAM. 0x2142 tells the router to bypass the configuration in NVRAM so that you can perform password recovery.

You telnet into a remote device and type debug ip rip, but no output from the debug command is seen. What could the problem be?

A.	You must type the show ip rip command first.
B.	IP addressing on the network is incorrect.
C.	You must use the terminal monitor command.
D.	Debug output is sent only to the console.

Answer: Option C

Explanation:

To see console messages through your Telnet session, you must enter the terminal monitor command.

Managing a Cisco Internetwork - Managing a Cisco Internetwork

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