When configuring NAT Server on the USG series firewall, the server-map table will be generated. Which of the following does not belong in the table?

• A.Source IP
• B.Destination IP
• C.Destination port number
• D.Agreement number

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There are various security threats in the use of the server. Which of the following options is not a server security threat?

• A.Natural disasters
• B.Malicious programs
• C.Hacking
• D.DDos attack

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Which of the following description is wrong about the operating system?

• A.The operating system is the interface between the user and the computer
• B.The operating system itself is also a software
• C.The operating system is responsible for managing the execution of all hardware resources and control software of the computer system.
• D.The interface between the operating system and the user is a graphical interface.

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Except built-in Portal authentication, firewall also supports custom Portal authentication, when using a custom Portalauthentication, no need to deploy a separate external Portal sever.

• A.False
• B.True

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As shown, when configuring the point-to-multipoint scenarios, the headquarters network segment is
10.1.1.0/24, the segment of branch 1 is 10.1.2.0/24, of branch 2 is 10.1.3.0/24.
About the protected data flow configuration which defined by headquarters and branch offices, which of the following combinations can be the full matched requirements?

• A.1 2 4 6
• B.1 2 3 5
• C.1 2
• D.3 4 5 6

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