CompTIA Network+ (N10-007) — Question 88

Under which of the following layers of the OSI model do ATM cells operate?

Answer options

• A. Data link
• B. Network
• C. Session
• D. Transport
• E. Presentation

Correct answer: A

Explanation

The correct answer is A, Data link, as ATM (Asynchronous Transfer Mode) operates at this layer, providing the means for data encapsulation and transmission. The other options, such as Network, Session, Transport, and Presentation, refer to different functionalities and responsibilities in the OSI model that do not pertain to the operation of ATM cells.