Computer Science for IGCSE & O level - Data Transmission (Section 10 - No. 38)
What is the function of the 'hop number' in a packet switching network?
To identify the destination router.
To prevent packets from circulating indefinitely.
To ensure packets arrive in the correct order.
To determine the optimal route for the packet.
Explication
The hop number prevents packets from endlessly circulating in the network.