[Solved] What is the main reason the physical layer transmits raw bits instead of processed data? — Ans: It only transmits signals without understanding data content | Computer Networks

Computer Networks - Physical and Data Link Layer

What is the main reason the physical layer transmits raw bits instead of processed data?

AIt compresses data before sending

BIt only transmits signals without understanding data content

CIt manages error correction codes

DIt routes data to the correct destination

Step-by-Step Solution

Solution:

Step 1: Identify physical layer responsibilities
The physical layer converts bits into signals for transmission but does not process or understand the data.
Step 2: Contrast with other layers
Functions like compression, error correction, and routing are handled by higher layers, not the physical layer.
Final Answer:
It only transmits signals without understanding data content -> Option B
Quick Check:
Physical layer = signal transmission only [OK]

Quick Trick: Physical layer transmits bits as signals, no data processing [OK]

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