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    Question

    Router is a network Layer

    device.
    A True Correct Answer Incorrect Answer
    B False Correct Answer Incorrect Answer

    Solution

    Devices used in each layer are…. 1.      Physical layer or below :  Hubs, Repeaters, Cables, Fibers, Wireless.. 2.      Data-link layer:  Bridges, Modems, Network cards, 2-layer switches. 3.      Network layer:  Routers, Brouters, 3-layer switches. 4.      Transport layer:  Gateways, Firewalls. 5.      Session layer:  Gateways, Firewalls, PC’s. 6.      Presentation layer :  Gateways, Firewalls, PC’s. 7.      Application layer:  Gateways,Firewalls, all end devices like PC’s, Phones, Servers..

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