CERTIFIED-IN-CYBERSECURITY · Question #331
CERTIFIED-IN-CYBERSECURITY Question #331: Real Exam Question with Answer & Explanation
The correct answer is C: The Data Link layer. A MAC address belongs to the Data Link layer of the OSI model. The Data Link layer is responsible for providing error-free transfer of data between nodes on the same local network, and it is where network interface cards (NICs) and MAC addresses are defined. The MAC address is a
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
Explanation
A MAC address belongs to the Data Link layer of the OSI model. The Data Link layer is responsible for providing error-free transfer of data between nodes on the same local network, and it is where network interface cards (NICs) and MAC addresses are defined. The MAC address is a unique identifier assigned to a network interface card, and it is used for communication within the local network. In forensic investigations, MAC addresses can be used to track the physical location of devices on the network and to identify devices that may be involved in network security incidents or policy violations (see ISC2 Study Guide, Module 4, under Network Forensics).
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