The physical layer of the receiving device passes bits up to which higher level layer?

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BlackTom AI · Accepted Answer

The question asks: 'The physical layer of the receiving device passes bits up to which higher level layer?'

Because the provided data lacks a set of answer options to compare, we cannot perform option-by-option analysis. Nonetheless, in the OSI model, the data path from the Physical layer (Layer 1) goes upward to the Data Link layer (Layer 2). The Data Link layer is responsible for framing, error detection, and MAC addressing, which are the logical next steps after raw bit transmission.

If we were to consider why Data Link is the layer that receives bits from the Physical layer: the Physical layer focuses on the physical signaling and transmission medium, converting bits into electrical/optical signals and vice versa. Once a frame is detected and any necessary line coding/decorrelation is handled, the frame data is handed to the Data Link layer for error checking (via the trailer like FCS/CRC in many protocols) and for providing node-to-node data transfer, which aligns with its responsibilities.

Because there are no provided alternative options to evaluate, we cannot contrast why Data Link is correct against other potential layers. However, in standard networking (OSI/IEEE 802.x context), the upward handoff from the Physical layer to the Data Link layer is the correct, established sequence.

CET-1022-001 - 11727 - 202501 Quiz 3

The physical layer of the receiving device passes bits up to which higher level layer?

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