Which feature of IPsec validates the source of data transmitted through the Internet?
- authentication
- confidentiality
- anti-replay protection
- data integrity
Explanation: Authentication is the process of verifying the identity of a sender or receiver of data, and ensuring that the data has not been tampered with in transit. IPsec provides authentication through the use of digital certificates or pre-shared keys, which allow the receiver to verify the identity of the sender.
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