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
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.
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.
3. How many simultaneous Telnet sessions does a Cisco router support by default?
The
erase startup-config command erases the contents of NVRAM and will put you in setup mode if the router is restarted.
8. 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.
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.)
9. If you wanted administrators to see a message when logging into the router, which command would you use?
The typical banner is a message of the day (MOTD) and is set by using the global configuration mode command
banner motd.
10. 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."
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.