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Banking Computers Science Sample Paper Computer - Sample Paper - 21

  • question_answer
    A device operating at the physical layer is called a

    A) Bridge  

    B)        Router

    C) Repeater           

    D)        All of l he above 

    E)            None of these        

    Correct Answer: C

    Solution :

    Devices that. operate at the physical layer include repeaters, hubs, network interface cords (NICs), cables and connectors .Repeaters arc used to regenerate electrical signals that have attenuated (i.e. weekend) as a result of distance. That is. It receives signal of one end, regenerate original bit patterns and send refreshed signal on the other end.


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