CompTIA Network+ (N10-009) — Question 37

Which of the following layers of the OSI model is responsible for end-to-end encryption?

Answer options

• A. Presentation
• B. Application
• C. Session
• D. Transport

Correct answer: A

Explanation

The correct answer is A, Presentation, as this layer is responsible for data translation and encryption. The Application layer (B) focuses on user interface and application services, the Session layer (C) manages sessions between systems, and the Transport layer (D) ensures reliable data transfer but does not handle encryption.