engineering computer science MCQ #964

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

engineering computer science MCQ #964

  1. Question 1

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

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

    Answer: Hub

    Explanation: A hub operates at the physical layer, simply forwarding incoming data to all connected devices.