Computer Science for IGCSE & O level - Data Transmission (Section 6 - No. 32)
What is the function of the 'sequence number' in a packet's header?
To indicate the packet's size.
To determine the source of the packet.
To help reassemble packets in the correct order.
To encrypt the data.
Shpjegimi
The sequence number ensures that the packets arrive at their destination in the correct order.