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In a TCP connection, the initial sequence number at the client site is 1846. The client opens the connection, sends only one segment carrying 1200 bytes of data, and closes the connection. What is the value of the sequence number in SYN, DATA and FIN segment sent by the client? 

  1. 1200, 3046, 4246
  2. 1846, 1200, 3046
  3. 1200, 1846, 3046
  4. 1846, 3046, 3046

 

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Initially SYN packet is sent with sequence number 1846. Then the DATA packet is sent by sender with sequence number 1847. Since only 1 pkt is sent (as per question), the Data packet contain the TCP header status as FIN i.e to END connection after receiving the packet. So the sequence number of FIN is also 3047
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