Multiple choice technology architecture

What is the name of layer 4 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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B Correct answer
Explanation

Layer 4 of the OSI model is the Transport Layer. It provides end-to-end communication services, including error recovery and flow control. Layers from bottom to top: Physical (1), Data Link (2), Network (3), Transport (4), Session (5), Presentation (6), Application (7).

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