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GATE | GATE-IT-2004 | Question 28

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  • Last Updated : 28 Jun, 2021

In TCP, a unique sequence number is assigned to each
(A) byte

(B) word
(C) segment
(D) message

Answer: (A)

Explanation: Since we all know that the TCP is one of the 7 layers of OSI reference model. It has the basic

responsibility to provide a reliable, end-to- end two way data transmission in the form of bytes to the

application that uses it. In making the byte stream transmission to be reliable TCP provides every byte a

unique sequence number. The TCP header has the a sequence number field, which indicates the

position of the first byte in the TCP data field in the data stream.

This explanation has been contributed by Namita Singh

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