Multiple choice technology architecture

What is the name of layer 1 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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Explanation

Layer 1 of the OSI reference model is the Physical Layer. This layer deals with the physical connection between devices and transmission of raw bit streams over the network medium. It specifies electrical, mechanical, and procedural requirements for activating and deactivating physical connections. Transport is Layer 4, Data Link is Layer 2, and Network is Layer 3.

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