CERTIFIED-IN-CYBERSECURITY · Question #331
To which OSI layer does a MAC address belong to?
The correct answer is C. The Data Link layer. A MAC (Media Access Control) address is a hardware identifier burned into a network interface card (NIC) and operates at Layer 2 - the Data Link layer - of the OSI model. Layer 2 is responsible for node-to-node data transfer and framing within the same local network segment…
Question
To which OSI layer does a MAC address belong to?
Options
- AThe Physical layer
- BThe Session layer
- CThe Data Link layer
- DThe Application layer
How the community answered
(46 responses)- A7% (3)
- B2% (1)
- C89% (41)
- D2% (1)
Explanation
A MAC (Media Access Control) address is a hardware identifier burned into a network interface card (NIC) and operates at Layer 2 - the Data Link layer - of the OSI model. Layer 2 is responsible for node-to-node data transfer and framing within the same local network segment. Layer 1 (Physical) deals with raw bit transmission over physical media. Layer 5 (Session) manages communication sessions. Layer 7 (Application) handles end-user protocols like HTTP and SMTP. IP addresses, by contrast, belong to Layer 3 (Network).
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