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A packet has arrived in which the offset value is 100, the value of HLEN is 5 and the value of the total length field is 100. What is the number of the first byte?(a) 800(b) 880(c) 400(d) 780This question was posed to me in an online quiz.This intriguing question comes from IP Datagram Packet topic in division Internet Protocol, Network Addressing and Transport Level Security of Cryptograph & Network Security

Answer» CORRECT option is (a) 800

The BEST EXPLANATION: Total data bytes = total length – header length = 80 bytes in this datagram.

First byte is 800.


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