At which OSI layer are MAC addresses used for communication?

Options

  • A. Network Layer
  • B. Transport Layer
  • C. Data Link Layer
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

C. Data Link Layer

Detailed Explanation

Explanation: The Data Link Layer (Layer 2) uses MAC addresses for node-to-node delivery within a local network. Ethernet frames contain source and destination MAC addresses.