CompTIA Network+ (N10-009) — Question 114

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 (Encapsulating Security Payload), as it provides confidentiality by encrypting the entire payload of the IP packet. Options B (AH) and C (GRE) do not offer encryption; AH only provides authentication, while GRE is primarily used for tunneling without encryption. UDP and TCP are transport layer protocols and do not include mechanisms for encryption.