Networking Fundamentals — Question 80

At what layer in the OSI model are hardware addresses referenced?

Answer options

• A. Network
• B. Application
• C. Data link
• D. Physical

Correct answer: C

Explanation

The correct answer is C, as the Data link layer is responsible for hardware addressing, such as MAC addresses, which are used for communication between devices on the same local network. The Network layer (A) focuses on logical addressing and routing, the Application layer (B) pertains to end-user services and applications, and the Physical layer (D) deals with the transmission of raw bitstreams over physical mediums.