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An IP packet has arrived with the first 8 bits as 01000010. What is the header length?

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An IP packet has arrived with the first 8 bits as 01000010. What is the header length?

(a) 4

(b) 8

(c) 12

(d) 16

The question was asked by my college director while I was bunking the class.

My question is based upon IP Datagram Packet topic in portion Internet Protocol, Network Addressing and Transport Level Security of Cryptograph & Network Security

1 Answer

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The correct option is (b) 8

The explanation: The right 4-bits multiplied by 4 is the header length (0010=2).

2 x 4 = 8.

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