What is the primary purpose of Layer 2 (Data Link) in the OSI model, and which common protocols operate there?

What is the primary purpose of Layer 2 (Data Link) in the OSI model, and which common protocols operate there?

• A. Layer 2 handles node-to-node data transfer, framing, MAC addressing, and access to the physical medium.
• B. Layer 2 manages end-to-end routing between networks.
• C. Layer 2 handles software-based filtering and application-layer protocols.
• D. Layer 2 provides encryption for data links.

Answer: (A)