Which one is the bottom layer of the OSI model
Correct answer: B. Physical
- A. Presentation
- B. Physical
- C. Session
- D. Application
Explanation
The physical layer is responsible for the physical transmission of data bits across a network. It defines the characteristics of the transmission medium, such as the type of cable, the signal strength, and the data rate. The physical layer does not concern itself with the meaning of the data or how it is formatted
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