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  • Question
  • 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.

  • 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.

  • Managing a Cisco Internetwork problems


    Search Results


    • 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
    • 2. A network administrator is connecting hosts A and B directly through their Ethernet interfaces, as shown in the illustration. Ping attempts between the hosts are unsuccessful. What can be done to provide connectivity between the hosts?

      1. A crossover cable should be used in place of the straight-through cable.
      2. A rollover cable should be used in place of the straight-through cable.
      3. The subnet masks should be set to 255.255.255.192.
      4. A default gateway needs to be set on each host.
      5. The subnet masks should be set to 255.255.255.0.

    • Options
    • A. 1 only
    • B. 2 only
    • C. 3 and 4 only
    • D. 1 and 5 only
    • E. 2 and 5 only
    • Discuss
    • 3. If a host on a network has the address 172.16.45.14/30, what is the subnetwork this host belongs to?

    • Options
    • A. 172.16.45.0
    • B. 172.16.45.4
    • C. 172.16.45.8
    • D. 172.16.45.12
    • Discuss
    • 4. Using the illustration from the previous question, what would be the IP address of S0 if you were using the first subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range. Again, the zero subnet should not be considered valid for this question.

    • Options
    • A. 192.168.10.24
    • B. 192.168.10.62
    • C. 192.168.10.30
    • D. 192.168.10.127
    • Discuss
    • 5. On a VLSM network, which mask should you use on point-to-point WAN links in order to reduce the waste of IP addresses?

    • Options
    • A. /27
    • B. /28
    • C. /29
    • D. /30
    • Discuss
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. 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
    • 10. 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


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