Networking Fundamentals — Question 23

What is the purpose of a Media Access Control (MAC) address?

Answer options

• A. identify a network device to the Internet
• B. uniquely identify a physical network device
• C. manage permissions for shared network resources
• D. provide a routing address on a local area network (LAN)

Correct answer: D

Explanation

The correct answer is D because a MAC address is used to route packets within a local area network (LAN). Option A is incorrect as MAC addresses do not identify devices to the Internet; they operate at a local level. Option B, while true about MAC addresses, does not describe their specific function in networking, and option C relates to permissions rather than the identification process of devices.