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't access all websites ending with bt.com.
• B.Users can visit www.videobt.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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Regarding the sequence of the mail transmission process, which of the following is correct?
1. The sender PC sends the mail to the designated SMTP Server.
2. The sender SMTP Server encapsulates the mail information in an SMTP message and sends it to the receiver SMTP Server according to the destination address of the mail
3. The sender SMTP Server encapsulates the mail information in an SMTP message according to the destination address of the mail and sends it to the receiver POP3/MAP Senver
4. The recipient sends an email.

• A.1->2->3
• B.1->3->2
• C.1->4->3
• D.1->2->4,

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Which of the following options is wrong for the description of the cleaning center?

• A.The cleaning center completes the functions of drainage, cleaning, and re-injection of the flow after cleaning in the abnormal flow.
• B.The cleaning equipment supports rich and flexible attack prevention technologies, but it is ineffective against cc attacks and ICMP Flood attacks.
• C.Re-injection methods include: policy route re-injection, static route re-injection, VVPN back-injection and layer 2 same.
• D.There are two types of drainage methods: static drainage and dynamic drainage.

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Which of the following options are common behavioral characteristics of viruses? (multiple choices)

• A.Information collection characteristics
• B.Download and backdoor features
• C.Network attack characteristics
• D.Self-hidden features

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The Huawei USG6000 product can identify the actual types of common files and filter inspection to content. Even if the file is hidden in a zip file, or if you change the extension, you can't escape the eyes of the firewall.

• A.True
• B.False

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