What is the name of layer 2 of the OSI reference model ?
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The physical layer
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The transport layer
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The data link layer
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The network layer
C
Correct answer
Explanation
Layer 2 of the OSI model is the Data Link layer, responsible for node-to-node data transfer on the same network segment. It handles framing, physical addressing (MAC addresses), error detection, and media access control (via MAC sublayer and LLC sublayer).