1.
Which of the following commands sets the secret password to Cisco?
A. enable secret password Cisco
B. enable secret cisco
C. enable secret Cisco
D. enable password Cisco
Answer & Explanation
Answer: Option C
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.
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2.
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?
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.
Answer & Explanation
Answer: Option D
Explanation:
You can view the interface statistics from user mode, but the command is show interface serial 0/0.
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3.
Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface?
show version
show protocols
show interfaces
show controllers
show ip interface
A. 1, 2 and 4
B. 2, 3 and 5
C. 3 and 4 only
D. None of the above
Answer & Explanation
Answer: Option B
Explanation:
The commands show protocols, show interfaces, and show ip interface will show you the layer 1 and 2 status and the IP addresses of your router’s interfaces.
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4.
You type show running-config and get this output:
[output cut]
Line console 0
Exec-timeout 1 35
Password BIXPASSWD
Login
[output cut]
What do the two numbers following the exec-timeout command mean?
A. If no command has been typed in 35 seconds, the console connection will be closed.
B. If no router activity has been detected in 1 hour and 35 minutes, the console will be locked out.
C. If no commands have been typed in 1 minute and 35 seconds, the console connection will be closed.
D. If you’re connected to the router by a Telnet connection, input must be detected within 1 minute and 35 seconds or the connection will be closed.
Answer & Explanation
Answer: Option C
Explanation:
The exec-timeout command is set in minutes and seconds.
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5.
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.”
A. Physical layer
B. Data Link layer
C. Network layer
D. None. It is a router problem.
Answer & Explanation
Answer: Option A
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.