Which of the following is the correct about computer virus?

• A.The computer virus is contagious. It can spread through floppy disks and optical disks but it does not spread through the network.
• B.The computer virus is latent. It may be lurking for a long time. It will only begin to perform sabotage if certain conditions are met.
• C.Patching the system can completely solve the problem of virus intrusion
• D.All computer viruses must be parasitic in files and cannot exist independently

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When a device identifies a keyword during content filtering detection, what response actions can the device perform? (Multiple Choice)

• A.Announcement
• B.Alarm
• C.Operate by weight
• D.Blocking

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Regarding Huawei's anti-virus technology, which of the following statements is wrong?

• A.The implementation of gateway antivirus is based on proxy scanning and stream scanning
• B.The anti-virus engine can detect the file type through the file extension
• C.The virus detection system cannot directly detect compressed files
• D.Gateway antivirus default file maximum decompression layer is 3 layers

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Which of the following are the network layer attacks of the TCP/IP stack? (Multiple Choices)

• A.Address scan
• B.Buffer overflow
• C.IP spoofing
• D.Port scanning

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Which of the following are the keyword matching patterns? (Multiple Choice)

• A.Custom Keywords
• B.Community word
• C.Text
• D.Regular expressions

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