UGC-NET | UGC NET CS 2015 Jun – III | Question 26

Which of the following control fields in TCP header is used to specify whether the sender has no more data to transmit?
(A) FIN
(B) RST
(C) SYN
(D) PSH


Answer: (A)

Explanation:

  • FIN is control flag in TCP header indicates the end of data transmission to finish a TCP connection.
  • The SYN flag synchronizes sequence numbers to initiate a TCP connection.
  • RST kills the TCP connection instantly.
  • PSH flag informs the host that the data should be uploaded to the receiving application immediately.
  • So, option (A) is correct.

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