[Solved] In OSPF database descriptor packet, which field is used to detect a missing packet?

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Q.	In OSPF database descriptor packet, which field is used to detect a missing packet?
A.	lsa header
B.	ms
C.	database descriptor sequence number
D.	options
Answer» C. database descriptor sequence number
Explanation: sequence number field is used to detect a missing packet. the packets are to be received in order of the sequence number, so if the receiver detects that there is a sequence number skipped or missing in the order, it stops processing the further received packets and informs the sender to retransmit the packets in sequence.

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