What problem does IPsec IKE aggressive mode mainly solve?

• A.solve because of uncertain originator source address cannot select pre-shared key problem
• B.solve NAT traversal problem
• C.solve the security problem in the process of negotiation
• D.solve the problem of slow negotiation on both ends of the tunnel

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When configuring NAT Server on the LSG series firewall, the server-map table will be generated. Which of the following does not belong in the table?

• A.Agreement number
• B.Destination IP
• C.Destination port
• D.Source IP

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Which of the following is not a hash algorithm?

• A.SM1
• B.MD5
• C.SHA2
• D.SHA1

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When the USG series firewall hard disk is in place, which of the following logs can be viewed? (Multiple Choice)

• A.Operation log
• B.Threat log
• C.Business log
• D.Alarm information

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Which of the following attacks is not a malformed message attack?

• A.Smurf attack
• B.ICMP unreachable packet attack
• C.TCP fragment attack
• D.Teardrop attack

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