Which definition below best describes a covert channel?
A.
Making use of a Protocol in a way it was not intended to be used
B.
It is the multiplexing taking place on communication link
C.
It is one of the weak channels used by WEP that makes it insecure
D.
A Server Program using a port that is not well known
Explanation:
A covert channel is a hidden communication channel not intended for information transfer at all. Redundancy can often be used to communicate in a covert way. There are several ways that hidden communication can be set up.