Which of the following options are characteristic of symmetric encryption algorithms? (multiple choice)

• A.Insecure key distribution
• B.Fast encryption
• C.High security of key distribution
• D.Confidential is slow

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The world's first worm-"Morris Worm"Make people realize that with the deepening of people's dependence on computers, the possibility of computer network being attacked is also increasing, and it is necessary to establish a sound emergency response system

• A.False
• B.True

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Regarding the investigation and evidence collection, which of the following statement is correct?

• A.Document evidence is required in computer crimes
• B.Evidence acquired by eavesdropping is also effective
• C.During all investigation and evidence, preferably with law enforcement involved.
• D.Evidence is not necessarily needed in an investigation

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In the Huawei SDSec solution, which of the following is an analysis layer device?

• A.CIS
• B.Agile Controller
• C.switch
• D.Firehunter

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Which of the following optionsVPNDoes technical support encrypt data packets? (multiple choice)

• A.SSL VPN
• B.GRE VPN
• C.IPSec VPN
• D.L2TP VPN

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