Computer Science for IGCSE & O level - Data Transmission (Section 4 - No. 25)
If the 'hop number' of a packet reaches zero, what action is usually taken?
The packet is encrypted.
The packet is re-routed.
The packet is discarded.
The packet is sent back to the source.
Explanation
The hop number is a counter to prevent packets from endlessly circulating in the network.
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