In digital signature technology, we usually encrypt the digital fingerprint with the sender's ( ). (fill in the blank)

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IPSec VPNtechnology adoptionESPSecurity protocol encapsulation is not supportedNATcross becauseESPThe header of the message is encrypted

• A.False
• B.True

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NAPT technology can realize a public IP address for multiple private network hosts

• A.True
• B.False

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Manual audit is a supplement to tool assessment. It does not require any software to be installed on the target system being assessed, and has no effect on the operation and status of the target system. Which of the following is not included in the manual audit?

• A.Manual inspection of network equipment
• B.Manual detection of the host operating system
• C.Manual inspection of the database
• D.Manual inspection of the process of the administrator operating the equipment

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Encryption technology can convert readable information into unreadable information through certain methods.

• A.False
• B.True

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