Question:
What field content is used by ICMPv6 to determine that a packet has expired?
- TTL field
- CRC field
- Hop Limit field
- Time Exceeded field
Explanation: ICMPv6 sends a Time Exceeded message if the router cannot forward an IPv6 packet because the packet expired. The router uses a hop limit field to determine if the packet has expired, and does not have a TTL field.
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