Managing a Cisco Internetwork problems
- 1. Which command will show you the IOS version running on your router?
Options- A. sh IOS
- B. sh flash
- C. sh version
- D. sh running-config Discuss
Correct Answer: sh version
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.
- 2. What does the command o/r 0x2142 provide?
Options- 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. Discuss
Correct Answer: It is used to bypass the configuration in NVRAM.
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.
- 3. Which command loads a new version of the Cisco IOS into a router?
Options- A. copy flash ftp
- B. copy ftp flash
- C. copy flash tftp
- D. copy tftp flash Discuss
Correct Answer: copy tftp flash
Explanation:
The command
copy tftp flash will allow you to copy a new IOS into flash memory on your router.
- 4. 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?
Options- A. show version
- B. show flash
- C. show memory
- D. show buffers Discuss
Correct Answer: show flash
Explanation:
The
show flash command will provide you with the current IOS name and size and the size of flash memory.
- 5. You are troubleshooting a connectivity problem in your corporate network and want to isolate the problem. You suspect that a router on the route to an unreachable network is at fault. What IOS user exec command should you issue?
Options- A. Router> ping
- B. Router> trace
- C. Router> show ip route
- D. Router> show interface Discuss
Correct Answer: Router> trace
Explanation:
The command
traceroute (trace for short), which can be issued from user mode or privileged mode, is used to find the path a packet takes through an internetwork and will also show you where the packet stops because of an error on a router.
- 6. 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?
Options- 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. Discuss
Correct Answer: The copy did not override the shutdown command in running-config.
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.
- 7. If you want to have more than one Telnet session open at the same time, what keystroke combination would you use?
Options- A. Tab+Spacebar
- B. Ctrl+X, then 6
- C. Ctrl+Shift+X, then 6
- D. Ctrl+Shift+6, then X Discuss
Correct Answer: Ctrl+Shift+6, then X
Explanation:
To keep open one or more Telnet sessions, use the
Ctrl+Shift+6 and then
X keystroke combination.
- 8. 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?
Options- 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. Discuss
Correct Answer: NVRAM should be erased and the router restarted.
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.
- 9. You need to gather the IP address of a remote switch that is located in Hawaii. What can you do to find the address?
Options- 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. Discuss
Correct Answer: Issue the show cdp neighbors detail command on the router connected to the switch.
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.
- 10. You are unsuccessful in telnetting into a remote device. What could the problem be?
- IP addresses are incorrect.
- Access control list is filtering Telnet.
- There is a defective serial cable.
- The VTY password is missing.
Options- A. 1 only
- B. 3 only
- C. 2 and 4 only
- D. All of the above Discuss
Correct Answer: 2 and 4 only
Explanation:
The best answers, the ones you need to remember, are that either an access control list is filtering the Telnet session or the VTY password is not set on the remote device.
Programming
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