CompTIA Network+ (N10-008) — Question 632

Which of the following is a characteristic of the application layer?

Answer options

• A. It relies upon other layers for packet delivery.
• B. It checks independently for packet loss.
• C. It encrypts data in transit.
• D. It performs address translation.

Correct answer: A

Explanation

The correct answer is A because the application layer relies on the transport layer and other lower layers to ensure that packets are delivered to their destination. Options B, C, and D describe functions that are not characteristic of the application layer, as they pertain to error checking, encryption, and network addressing, respectively.