1.

The _________ field determines the lifetime of IPv6 datagram(a) Hop limit(b) TTL(c) Next header(d) Type of traffic

Answer» The correct choice is (a) Hop limit

The explanation: The Hop limit value is decremented by one by a router when the datagram is forwarded by the router. When the value becomes zero the datagram is discarded. The field is 8-bits wide, so an IPv6 packet can live up to 255 router hops only.


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