engineering computer science MCQ #335

Which device operates at the physical layer of the OSI model?

engineering computer science MCQ #335

  1. Question 1

    Q1. Which device operates at the physical layer of the OSI model?

    • A) Router
    • B) Switch
    • C) Repeater
    • D) Bridge

    Answer: Repeater

    Explanation: A repeater operates at the physical layer, amplifying weak signals to extend the transmission distance.