The show interfaces serial 0/0 command resulted in the output shown in the graphic. What are
possible causes for this interface status? (Choose three.)

A.
No keepalive messages are received.

B.
No cable is attached to the interface.

C.
There is a mismatch in the encapsulation type.

D.
No loopback address is set.

E.
The interface is shut down.

F.
The clockrate is not set.

Explanation:
Table 15-1 : Serial Lines: show interfaces serial Status Line Conditions – This table shows the
interface status conditions, possible problems associated with the conditions, and solutions to
those problems.

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