Final answer:
The flow control scheme that allows a station to transmit a number of data packets at one time before receiving acknowledgment is the sliding window protocol.
Step-by-step explanation:
In computer networking, the flow control scheme that allows a station to transmit a number of data packets at one time before receiving acknowledgment is sliding window protocol. It is a protocol used in data communication to ensure reliable and efficient data transmission. The sliding window protocol allows the sender to continue sending packets without waiting for acknowledgments for every packet sent.
For example, the Selective Repeat sliding window protocol allows the sender to transmit a specific number of packets (window size) before waiting for acknowledgments. The receiver acknowledges each successfully received packet, and the sender adjusts its window based on the acknowledgment received.
The sliding window protocol helps increase the utilization of the network and reduce overhead caused by frequent acknowledgment exchanges. It is commonly used in protocols such as Transmission Control Protocol (TCP) for reliable data transfer over the Internet.