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HCNP-Security-CISN (Huawei Certified Network Professional - Constructing Infrastructure of Security Network) Questions 106–110 (page: 23)

In the IKE V1 pre-shared key mode capture shown, what data is shown in the main role?

DDos attacks work through the network to the target (usually a server, such as DNS server, WEB server) and sends a small amount of abnormal packets of non-traffic, so that the attacked server parses the message, causing the system to crash or become busy.

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?

The IKE first stage main mode negotiation process includes the following information? (Choose three answers)

In-Band management and port management control information and business information is transmitted on the same channel.