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- Question
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
- Correct Answer
- erase start
ExplanationThe erase startup-config command erases the contents of NVRAM and will put you in setup mode if the router is restarted. - 1. You set the console password, but when you display the configuration, the password doesn't show up; it looks like this:
What cause the password to be stored like this?[output cut] Line console 0 Exec-timeout 1 44 Password 7098C0BQR Login [output cut]
Options- A. encrypt password
- B. service password-encryption
- C. service-password-encryption
- D. exec-timeout 1 35 Discuss
- 2. 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
- 3. What keystroke will terminate setup mode?
Options- A. Ctrl+Z
- B. Ctrl+^
- C. Ctrl+C
- D. Ctrl+Shift+^ Discuss
- 4. 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
- 5. How many simultaneous Telnet sessions does a Cisco router support by default?
Options- A. 2
- B. 3
- C. 4
- D. 5 Discuss
- 6. 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. Discuss
- 7. 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
- 8. 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
- 9. You type the following command into the router and receive the following output:
Why was this error message displayed?Router#show serial 0/0 ^ % Invalid input detected at '^' marker.
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
- 10. 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
IOS and Security Device Manager problems
Search Results
Correct Answer: service password-encryption
Explanation:
The command
service password-encryption, from global configuration mode, will encrypt the passwords.
Correct Answer: Setup mode
Explanation:
If you delete the startup-config and reload the router, the router will automatically enter setup mode. You can also type
setup from privileged mode at any time.
Correct Answer: Ctrl+C
Explanation:
You can exit setup mode at any time by using the keystroke
Ctrl+C.
Correct Answer: enable secret Cisco
Explanation:
The enable secret password is case sensitive, so the second option is wrong. To set the
enable secret <password>, use the
enable secret <password> command from global configuration mode.
Correct Answer: 5
Explanation:
Cisco routers, if they do not have the Enterprise edition of the IOS, will default to 5 simultaneous Telnet sessions.
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.)
Correct Answer: banner motd
Explanation:
The typical banner is a message of the day (MOTD) and is set by using the global configuration mode command
banner motd.
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
serial1 is up,
line protocol is down, then you are not receiving (Data Link) keepalives from the remote end.
Correct Answer: Part of the command is missing.
Explanation:
You can view the interface statistics from user mode, but the command is
show interface serial 0/0.
Correct Answer: show controllers serial 0
Explanation:
The
show controllers serial 0 command will show you whether either a DTE or DCE cable is connected to the interface. If it is a DCE connection, you need to add clocking with the clock rate command.
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