The technique of temporarily delaying outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is called ______

A)  piggybacking
B)  parity check
C)  fletcher’s checksum
D)  cyclic redundancy check

Correct Answer :   piggybacking


Explanation : Piggybacking is a technique in which the acknowledgment is temporarily delayed so as to be hooked with the next outgoing data frame. It saves a lot of channel bandwidth as in non-piggybacking system, some bandwidth is reserved for acknowledgement.