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17 November, 23:06

Which of the following statements is not true about the TCP opening and closing of connections?

a. TCP uses a three-way handshake to open a connection.

b. The sequence number is a random number selected by the sending computer.

c. The SYN bit is set to 1 in the last segment used to close a connection.

d. The first segment used to open a connection has the SYN bit set to 1.

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  1. 18 November, 02:48
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    Answer: c.)

    Explanation:

    The bit SYN is used in order to synchronize segment numbers in the sender and receiving processes in hosts that are trying to start a data transmitting session between them.

    It is initiated by the sending end, that set this bit to " 1", in the TCP header, starting which is known as a "3-way handshake process".

    The bit SYN is not used in order to close a connection, the FIN bit is used for this purpose.

    If one process set the FIN bit to "1", this means that it has no more data to send.
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