CompTIA Network+ (N10-009) — Question 155

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 application layer relies on lower layers of the OSI model to ensure packets are delivered effectively, which makes option A correct. Options B and C are incorrect because packet loss checking and encryption are not primary functions of the application layer. Option D is also incorrect as address translation is typically handled at the network layer.