OSI Model: Physical Layer Fundamentals
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Questions and Answers

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

  • a. Helps prevent crosstalk amongst the wires in the cable.
  • b. Helps prevent EMI/RFI interference.
  • c. Transmit raw data bits over a physical medium, either wired or wireless.
  • d. Transmits data over longer distances at higher bandwidth than any other networking media. (correct)

    1. It is often referred to as the “Hardware Layer”, since it involves tangible physical components rather than abstract data features.

  • a. Data link layer
  • b. Presentation layer
  • c. Transport Layer
  • d. Physical Layer (correct)

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