H12-821_V1.0 Exam Dumps | In IPsec, an SA (Security Association) is uniquely identified by three parameters. Which of the following

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Question 4/140

In IPsec, an SA (Security Association) is uniquely identified by three parameters. Which of the following parameters does not belong to the 3-tuple information?

A. Key exchange protocol

B. SPI

C. Destination IP address

D. Security protocol ID

Correct Answer: A

Comprehensive and Detailed In-Depth Explanation:
* IPsec (IP Security Protocol) establishes Security Associations (SAs) for encrypted communication.
* An SA is uniquely identified by a 3-tuple:
* SPI (Security Parameter Index) # Identifies the SA.
* Destination IP Address # Specifies the receiving device.
* Security Protocol ID # Indicates whether AH (Authentication Header) or ESP (Encapsulating Security Payload) is used.
* A. Key exchange protocol is not part of the SA 3-tuple. It is used during IKE (Internet Key Exchange) but is not part of the SA itself.
# Reference: Huawei HCIA-Datacom Study Guide, IPsec Security Association and SA Identification.

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