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H12-721 · Question #17
H12-721 Question #17: Real Exam Question with Answer & Explanation
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Question
In the TCP / IP protocol, TCP protocol provides reliable connectivity service using three-way handshake to achieve. The first handshake: establish a connection, the client sends a SYN packet (SYN = J) to the server, and enter SYN_SENT state, waiting for the server to confirm. Second handshake: the server receives a SYN packet and must issue an ACK packet (ACK = ) to confirm the client's SYN packet, but he is sending a SYN packet (SYN = K), ie, SYN-ACK packets, the server enters SYN_RCVD state. Third handshake: the client receives the SYN-ACK packet, the server sends an acknowledgment packet ACK (SYN = ASK = ), this package has been sent, the client and server enter into the ESTABLISHED state, completing the three-way handshake. About three-way handshake during the three parameters, which of the following statements is correct?
Options
- A= J +1 = J +1 = K +1
- B= J = K +1 = J +1
- C= J +1 = K +1 = J +1
- D= J +1 = J = K +1
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