CompTIA Network+ (N10-008) — Question 645

Which of the following IP transmission types encrypts all of the transmitted data?

Answer options

• A. ESP
• B. AH
• C. GRE
• D. UDP
• E. TCP

Correct answer: A

Explanation

The correct answer is A, ESP, which stands for Encapsulating Security Payload, and it provides encryption for the data being transmitted. AH, or Authentication Header, only provides integrity and authentication without encryption. GRE (Generic Routing Encapsulation) and both UDP (User Datagram Protocol) and TCP (Transmission Control Protocol) do not offer built-in encryption.