( ) Can block discovered network intrusions in real time. (fill in the blank)

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IPSec VPNs use pre-shared keys, ( ) and digital envelopes to authenticate peers. (fill in the blank)

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Which of the following attacks is not a cyber attack?

• A.Smurfattack
• B.MACaddress spoofing attack
• C.ICMPattack
• D.IPspoofing attack

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Digital envelope refers to the data obtained after the sender uses the receiver's ______ to encrypt the symmetric key.

• A.Public key

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Please sort the following project implementation steps from the start of the project.

Correct Answer:

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