What is piggybacking?

1.	What is piggybacking?
Answer» After receiving DATA packets in two-way communication, the RECEIVER sends an acknowledgment (control frame or ACK) to the sender. The receiver, on the other hand, does not send the acknowledgment right away, instead of waiting until the next data packet is received by its NETWORK layer. The ACK is then ADDED to the incoming data frame. Piggybacking is the process of postponing the ACK and attaching it to the next outgoing data frame.

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