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  • Question

  • What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."


  • Options
  • A. The keepalives are different times.
  • B. The administrator has the interface shut down.
  • C. The administrator is pinging from the interface.
  • D. No cable is attached.

  • Correct Answer
  • The administrator has the interface shut down. 

    Explanation
    If an interface is shut down, the show interface command will show the interface as administratively shut down. (It is possible that no cable is attached, but you can't tell that from this message.)

    • IOS and Security Device Manager problems

    Search Results

    • 1. Which command will delete the contents of NVRAM on a router?

    • Options
    • A. delete NVRAM
    • B. delete startup-config
    • C. erase NVRAM
    • D. erase start
      • Discuss
    • 2. You set the console password, but when you display the configuration, the password doesn't show up; it looks like this: 

      [output cut]
Line console 0
    Exec-timeout 1 44
    Password 7098C0BQR
    Login
[output cut]
      What cause the password to be stored like this?

    • Options
    • A. encrypt password
    • B. service password-encryption
    • C. service-password-encryption
    • D. exec-timeout 1 35
      • Discuss
    • 3. If you delete the contents of NVRAM and reboot the router, what mode will you be in?

    • Options
    • A. Privileged mode
    • B. Global mode
    • C. Setup mode
    • D. NVRAM loaded mode
      • Discuss
    • 4. What keystroke will terminate setup mode?

    • Options
    • A. Ctrl+Z
    • B. Ctrl+^
    • C. Ctrl+C
    • D. Ctrl+Shift+^
      • Discuss
    • 5. Which of the following commands sets the secret password to Cisco?

    • Options
    • A. enable secret password Cisco
    • B. enable secret cisco
    • C. enable secret Cisco
    • D. enable password Cisco
      • Discuss
    • 6. If you wanted administrators to see a message when logging into the router, which command would you use?

    • Options
    • A. message banner motd
    • B. banner message motd
    • C. banner motd
    • D. message motd
      • Discuss
    • 7. What layer of the OSI model would you assume the problem is in if you type show interface serial 1 and receive the following message? "Serial1 is down, line protocol is down."

    • Options
    • A. Physical layer
    • B. Data Link layer
    • C. Network layer
    • D. None. It is a router problem.
      • Discuss
    • 8. You type the following command into the router and receive the following output: 

      Router#show serial 0/0
        ^
% Invalid input detected at '^' marker.
      Why was this error message displayed?

    • Options
    • A. You need to be in privileged mode.
    • B. You cannot have a space between serial and 0/0.
    • C. The router does not have a serial0/0 interface.
    • D. Part of the command is missing.
      • Discuss
    • 9. Which command will show you whether a DTE or a DCE cable is plugged into serial 0?

    • Options
    • A. sh int s0
    • B. sh int serial 0
    • C. show controllers serial 0
    • D. show serial 0 controllers
      • Discuss
    • 10. Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface?

      1. show version
      2. show protocols
      3. show interfaces
      4. show controllers
      5. show ip interface

    • Options
    • A. 1, 2 and 4
    • B. 2, 3 and 5
    • C. 3 and 4 only
    • D. None of the above
      • Discuss

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