Computer Science Ques 350

Question: The physical layer is concerned with transmission of_____ over the physical medium.

Options:

A) Programs

B) Dialogs

C) Protocols

D) Bits

E) None of these

Show Answer

Answer:

Correct Answer: D

Solution:

  • The physical layer, lowest layer, in the OSI model is concerned with the transmission and reception of the unstructured raw bit stream (rather than logical data packets) over a physical medium. The hit stream may be grouped in to code words or symbols and converted to a physical signal that is transmitted over a hardware transmission medium.
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