Which of the following options belong to the upgrade method of the anti-virus signature database of Huawei USG6000 products? (multiple choice)

• A.Manual upgrade
• B.Automatic upgrade
• C.Online upgrade
• D.Local upgrade

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Which of the following technologies can achieve content security? (Multiple Choice)

• A.Web security protection
• B.Intrusion Prevention
• C.Sandbox and Big Data Analysis
• D.Global environment awareness

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Due to differences in network environment and system security strategies, intrusion detection systems are also different in specific implementation. From the perspective of system composition, the main Which four major components are included?

• A.Incident extraction, intrusion analysis, intrusion response and on-site management.
• B.Incident extraction, intrusion analysis, intrusion response and remote management.
• C.Event extraction, intrusion analysis, reverse intrusion and remote management.
• D.Incident recording, intrusion analysis, intrusion response and remote management.

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Anomaly detection establishes the normal behavior characteristics of the system's main body through analysis of system audit data: In the detection, if the audit data in the system is different from the normal behavior characteristics of the established subject, it is considered an intrusion behavior. Which of the following can be used as the system body? (Multiple choices)

• A.Host
• B.Single user
• C.A group of users
• D.A key program and file in the system

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

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