What are the typical technologies of anti-virus engines (multiple choice)

• A.Heuristic detection technology
• B.Decryption technology
• C.File reputation detection technology 5
• D.First package detection technology

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Regarding the local black and white list of anti-spam messages, which of the following statements is wrong?

• A.The black and white list is matched by the sender's dns suffix
• B.Black and white lists are matched by extracting the source IP address of the SMTP connection
• C.Block the connection if the source IP address of the SMTP connection matches the blacklist
• D.The black and white list is matched by extracting the destination IP address of the SMTP connection

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URL filtering technology can perform URL access control on users according to different time objects and address objects to achieve precise management of users.
The purpose of the Internet behavior.

• A.False
• B.True

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With regard to traditional firewalls, which of the following statements are correct? (Multiple choice)

• A.Cannot accurately control various applications such as P2P, online games, etc.
• B.It is unable to effectively resist the spread of viruses from the Internet to the internal network.
• C.Can quickly adapt to changes in threats.
• D.Lack of effective protection against application layer threats.

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Misuse detection discovers intrusion activity in system by detecting similar behaviors of user intrusions, or by detecting violations of system security rules indirectly by exploiting system flaws.
Which of the following is not misuse detection feature?

• A.Easy to implement
• B.Easy to upgrade
• C.Accurate detection
• D.Effective detection of impersonation of legitimate users

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