Computer Science for IGCSE & O level - Data Transmission (Section 14 - No. 47)
What is the purpose of a timeout in an ARQ protocol?
To reduce the size of the data.
To initiate data transmission.
To retransmit data if an acknowledgement is not received.
To encrypt the data.
Explication
The purpose of the timeout is to retransmit data if there are problems in the transmission.