Which of the following descriptions about IPsec VPN are correct? (Multiple Choice)

The correct answer is A. IKE SA is a bidirectional logical connection. A pair of IKE SA needs to be established between two B. The symmetric keys used for encryption and decryption can be configured manually or D. IPsec uses the HMAC (Hash-based Message Authentication Code) function to compare the. See the full explanation below for the reasoning.

Question

Which of the following descriptions about IPsec VPN are correct? (Multiple Choice)

Options

AIKE SA is a bidirectional logical connection. A pair of IKE SA needs to be established between two
BThe symmetric keys used for encryption and decryption can be configured manually or
CThe encryption function of IPsec cannot verify whether the decrypted information is the original
DIPsec uses the HMAC (Hash-based Message Authentication Code) function to compare the

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(54 responses)

A
76% (41)
C
24% (13)

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