Computer Science for IGCSE & O level - Data Transmission (Section 8 - No. 9)

What is a 'hop number' in packet switching used for?

Identifying the destination router.

Counting the number of routers a packet has passed through.

Preventing packets from circulating indefinitely.

Ensuring packets arrive in the correct order.

A 'hop number' is used to prevent packets from circulating the network indefinitely.