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: Option A
Solution(By Examveda Team)
If you see that a serial interface and the protocol are both down, then you have a Physical layer problem. If you seeserial1 is up
, line protocol is down
, then you are not receiving (Data Link) keepalives from the remote end. 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
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.
A. 1, 2 and 4
B. 2, 3 and 5
C. 3 and 4 only
D. None of the above
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.
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