Computer Science for IGCSE & O level - Data Transmission (Section 11 - No. 50)
What is the role of a 'timeout' in ARQ?
To reduce the data size.
To retransmit data if no acknowledgement is received.
To encrypt the data.
To verify the integrity of data.
Explication
A timeout triggers retransmission if an acknowledgement is not received within a specific time.