CompTIA Network+ (N10-007) — Question 594

Which of the following OSI layers is represented by a physical address that is assigned by the manufacturer?

Answer options

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

Correct answer: A

Explanation

The correct answer is A, Data link, as it is responsible for the physical addressing of devices in a network. Options B, C, D, and E relate to other functions in the OSI model, such as data transport, routing, session management, and the physical medium, none of which specifically deal with manufacturer-assigned physical addresses.