Multiple choice technology architecture

What is the name of layer 2 of the OSI reference model ?

  1. The physical layer

  2. The transport layer

  3. The data link layer

  4. The network layer
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C Correct answer
Explanation

Layer 2 of the OSI model is the Data Link Layer, responsible for node-to-node data transfer and physical addressing (MAC addresses). Layer 1 is Physical (electrical/signaling), Layer 3 is Network (routing, IP addressing), and Layer 4 is Transport (end-to-end communication like TCP/UDP).

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