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IOS and Security Device Manager - Technical MCQs

Q1:

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."

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.

ANS:B - The administrator has the interface shut down.

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.)