A large-scale enterprise has three departments, a marketing department, a research and development department, and a sales department. Each business department has its own internal resources. The company hopes that when employees on business trips of each department use SSL VPN to access intranet resources, they can use different departments according to their needs. Employees allocate different resource access rights and are isolated from each other. How can this problem be solved?

• A.Solve the problem through one-armed firewall networking.
• B.Create multiple virtual gateways on the firewall. Each service department independently uses its own virtual gateway to provide SSL VPN access services.
• C.Solve the problems through the firewall network.
• D.Assign different roles to employees in different departments.

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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?

• A.= J +1
  = K +1
  = J +1
• B.= J
  = K +1
  = J +1
• C.= J +1
  = J +1
  = K +1
• D.= J +1
  = J
  = K +1

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When the user logs in to the virtual gateway web page and prompts "Cannot display web page", what is the possible cause of the failure?

• A.The IP address of the virtual gateway has been changed.
• B.client browser set proxy server
• C.user PC and virtual gateway are unreachable
• D.uses a shared virtual gateway

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The following figure shows the data packets captured during the pre-shared key mode master mode exchange process in the first phase of IKE V1. Which packet is captured below?

• A.IKE fifth message or sixth message
• B.IKE first message or second message
• C.IKE seventh message or eighth message
• D.IKE third message or fourth message

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A firewall device can create multiple virtual gateways. Each virtual gateway is independent and does not affect each other. Administrators can configure their own users, resources, and policies under the virtual gateway for independent management.

• A.FALSE
• B.TRUE

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