Computer Science for IGCSE & O level - Data Transmission (Section 14 - No. 45)
Which of the following describes the blocks where the receiving computer sends back a copy of the future the sending computer to allow it to compare the data?
some check
automatic repeat request
check digit
Parity check
Explication
Automatic repeat request is a method that requires the receiver to send a copy of the data back to the sender to verify that the data was correctly received.