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      Question

      Which networking device operates at Layer 2 of the OSI

      model and forwards data based on MAC addresses?
      A Router Correct Answer Incorrect Answer
      B Switch Correct Answer Incorrect Answer
      C Hub Correct Answer Incorrect Answer
      D Firewall Correct Answer Incorrect Answer

      Solution

      A Layer 2 switch is a device that operates according to the Layer 2 data communications protocol. A Layer 2 device decides how to forward data based on the MAC address. Ethernet hubs and network switches work at the data link layer, with a switch delivering greater performance than a hub.

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