The anti-virus feature configured on the Huawei USG6000 product does not take effect. Which of the following are the possible reasons? (multiple choice)

• A.The anti-virus configuration file is configured incorrectly.
• B.The security policy does not reference the anti-virus configuration file.
• C.No virus exceptions are configured.
• D.The virus signature database version is older.

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For the description of the principles of HTTP Flood and HTTPS Flood blow defense, which of the following options are correct? (multiple choice)

• A.The principle of HTTPS Flood attack is to request URIs involving database operations or other URIs that consume system resources, causing server resource consumption.
  Failed to respond to normal requests.
• B.HTTPS Flood defense modes include basic mode, enhanced mode and 302 redirection.
• C.HTTPS Flood defense can perform source authentication by limiting the request rate of packets.
• D.The principle of HTTPS Flood attack is to initiate a large number of HTTPS connections to the target server, causing the server resources to be exhausted and unable to respond to regular requests.
  begging.

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The application behavior control configuration file takes effect immediately after being referenced, without configuration submission.

• A.False
• B.True

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When configure the URL filtering configuration file, www.bt.com is configured in the URL blacklist, and URL is set to *bt.com in the custom URL classification, and the action for customizing the URL classification is warning. .
Which of the following statements is true about the above configuration? (Multiple choices)

• A.Users can visit www.videobt.com.
• B.Users can't access all websites ending with bt.com.
• C.Users can visit www.bt.com website, but administrators will receive warning message.
• D.Users will be blocked when they visit www.bt.com.

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The main attack defense technologies of Huawei USG6000 include source detection, fingerprint learning and correlation defense.

• A.True
• B.False

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