At which layer of the OSI model do MAC addresses operate?

The correct answer is A. Data Link. MAC (Media Access Control) addresses operate at Layer 2 - the Data Link layer of the OSI model. The Data Link layer is responsible for node-to-node delivery on the same local network segment, using MAC addresses as hardware identifiers burned into NICs. Layer 3 (Network) uses…

Networking concepts

Question

Options

AData Link
BNetwork
CApplication
DPhysical

How the community answered

(31 responses)

A
94% (29)
B
3% (1)
C
3% (1)

Explanation

MAC (Media Access Control) addresses operate at Layer 2 - the Data Link layer of the OSI model. The Data Link layer is responsible for node-to-node delivery on the same local network segment, using MAC addresses as hardware identifiers burned into NICs. Layer 3 (Network) uses IP addresses for logical, routable addressing. Layer 1 (Physical) deals with raw electrical or optical signals with no concept of addressing. Layer 7 (Application) is where user-facing protocols like HTTP and FTP operate.

Topics

#OSI model#data link layer#MAC address

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