Consider the three-way handshake mechanism followed during TCP connection…

GATE · 2021 · CS · Set 2 · Computer Science & IT

Consider the three-way handshake mechanism followed during TCP connection establishment between hosts P and Q. Let X and Y be two random 32-bit starting sequence numbers chosen by P and Q respectively. Suppose P sends a TCP connection request message to Q with a TCP segment having SYN bit =1, SEQ number =X, and ACK bit =0. Suppose Q accepts the connection request. Which one of the following choices represents the information present in the TCP segment header that is sent by Q to P?

  1. A.

    SYN bit =1, SEQ number =X+1, ACK bit =0, ACK number =Y, FIN bit =0

  2. B.

    SYN bit =0, SEQ number =X+1, ACK bit =0, ACK number =Y, FIN bit =1

  3. C.

    SYN bit =1, SEQ number =Y, ACK bit =1, ACK number =X+1, FIN bit =0

  4. D.

    SYN bit =1, SEQ number =Y, ACK bit =1, ACK number =X, FIN bit =0

Attempted by 257 students.

Sign up free to check your answer

Sign up free

Explore the full course: Gate Guidance By Sanchit Sir

Loading lesson…