If Huawei USG6000 product uses its own protocol stack cache for all files passing through the device and then performs virus scanning, then the device uses a flow scan mode.

• A.TRUE
• B.FALSE

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

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Regarding the statement of the mail protocol, which of the following is correct? (multiple choice)

• A.Use JIMAP; the client software will download all unread mails to the computer, and the mail server will delete the mails.
• B.With IMAP, users can directly operate on the mail on the server, without downloading all the mails locally to perform various operations.
• C.Using POP3, the client software will download all unread mails to the computer, and the mail server will delete the mails.
• D.Using POP3, users can directly operate on the mail on the server without sending all mails to the local to perform various operations.

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After the IP policy is enabled, some services are found to be inaccessible. Which of the following may be the cause? (Multiple Choice)

• A.IPS missed
• B.The same packet passes through the firewall multiple times
• C.Only one direction of packets goes through the firewall
• D.Too much traffic causes the bypass function to be enabled

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The administrator defines two keywords that need to be identified on the firewall. The keyword x has a weight value of 2, the keyword y has a weight value of 3, and the content filtering alarm threshold is 5 (blocking threshold) 10. If the device detects that there is a keyword x in the page viewed by the user, the two keywords are Y;
What is the following statement about the value of weights and the behavior of users visiting web pages?

• A.The weight value is 8 and you cannot access the web page.
• B.The weight value is 8 and you can access the web page.
• C.The weight value is 10 and you can access the web page.
• D.The weight value is 10 and you cannot access the web page.

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