Which of the following regarding HTTP Flood defense is not correct?

• A.Checks the load
• B.fingerprints learning
• C.URI destination IP detection
• D.HTTP Flood Source Authentication

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What are the scenarios in which the USG series firewall service port sends gratuitous ARPs when the following configurations are performed?

• A.routing mode + router
• B.routing mode + switch
• C.exchange mode + router
• D.exchange mode + switch

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When the user logs in to the SSL VPN gateway, prompt "Illegal username and wrong password".
Which of the following are the possible causes of this failure? (Multiple Choice)

• A.Authentication server configuration error.
• B.The user entered the wrong password many times and the account was locked.
• C.The certificate filtering field configuration error.
• D.The user name and password were entered incorrectly.

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Below displays the IKE V1 first stage pre-shared key mode during the main mode packet switching crawl. Based on the information shown, the crawl occurs under which packet?

• A.IKE seventh or eighth Message
• B.IKE first or second Message
• C.IKE third or fourth Message
• D.IKE fifth or sixth Message

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A network is shown below.

A dial customer cannot establish a connection via a VPN client PC and USG (LNS) l2tp vpn. What are valid reasons for this failure? (Choose three answers)

• A.PPP authentication fails, PPP authentication mode set on the client PC and LNS inconsistent.
• B.LNS tunnel tunnel name change is inconsistent with the client name.
• C.Client PC can not obtain an IP address assigned to it from the LNS.
• D.L2TP tunnel authentication failed.

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