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- Question
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
- Correct Answer
- Router>trace
ExplanationThe 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.
- 1. 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
- 2. 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 configuraion 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
- 3. Which commands 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
- 4. At which layer of the OSI model would you assume the problem is if you type show interface serial 1 and receive the following message? Serial 1 is down, line protocol is down
Options- A. Physical layer
- B. Data Link layer
- C. Network layer
- D. None Discuss
- 5. You type Router#sh ru and receive a % ambiguous command error. why did you receive this message?
Options- A. The command requires additional options or parameters
- B. There is more than one show command that starts with the letters ru.
- C. There is no show command that starts with ru
- D. The command is being executed from the wrong router mode Discuss
- 6. 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 route command on the router connected to the switch
- B. Issue the show cdp neighbor command on the router connected to the switch
- C. Issue the show ip arp command on the router connected to the switch
- D. Issue the show cdp neighbors detail command on the router connected to the switch Discuss
- 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
- 8. What is the command to copy a Cisco IOS to a TFTP server? Discuss
- 9. Which of the following is the best description of the operation of split horizon?
Options- A. Information about a route should not be sent back in the direction from which the original update came
- B. It splits the traffic when you have a large bus (horizon) physical network
- C. It holds the regular updates from broadcasting to a downed link
- D. It prevents regular update messages from reinstating a route that has gone down Discuss
- 10. Which command displays RIP routing updates?
Options- A. Show ip route
- B. debug ip rip
- C. show protocols
- D. Debug ip route Discuss
CISCO Certification problems
Search Results
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.
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 dow and need to be manually enabled with the no shutdown command.
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.
Correct Answer: Physical layer
Explanation:
If you see that a serial interface and the protocol are both down, then you have a physical layer problem. If you see serial 1 is up, line protocol is down, then you are not receiving (Data Link) Keepalives from the remote end.
Correct Answer: There is more than one show command that starts with the letters ru.
Explanation:
The % ambiguous command error means that there is more than one possible show command that starts with ru. Use a question mark to find the correct command.
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 E will work just fine and your boss would probably prefer you to use the show cdp neighbors detail command.
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.
Correct Answer: copy flash tftp
Correct Answer: Information about a route should not be sent back in the direction from which the original update came
Explanation:
A split horizon will not advertise a route back to the same router it learned the route from.
Correct Answer: debug ip rip
Explanation:
Debug ip rip is used to show the internet Protocol (IP) Routng Information protocol (RIP) updates being sent and received on the router.
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