What is the primary function of the Physical Layer in the OSI model?

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Question: What is the primary function of the Physical Layer in the OSI model?

Options:

Correct Answer: Signal transmission

Solution:

The Physical Layer (Layer 1) is responsible for the transmission of raw bitstreams over a physical medium.

What is the primary function of the Physical Layer in the OSI model?

What is the primary function of the Physical Layer in the OSI model?

Step 1: Understand that the OSI model has 7 layers, and the Physical Layer is the first one.
Step 2: Know that the Physical Layer deals with the actual hardware used in networking, like cables and switches.
Step 3: Realize that its main job is to send and receive raw data bits (0s and 1s) over these physical connections.
Step 4: Remember that it does not understand the meaning of the data; it only transmits it as electrical signals, light pulses, or radio waves.

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