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      Question

      Ethernet operates in which

      layer/s?
      A Physical layer Correct Answer Incorrect Answer
      B DLL Correct Answer Incorrect Answer
      C Session layer Correct Answer Incorrect Answer
      D Both 1 and 2 Correct Answer Incorrect Answer
      E Both 1 and 3 Correct Answer Incorrect Answer

      Solution

      Ethernet 1. Ethernet is one of the most widely used technology in the LAN. 2. It uses the carrier sense multiple access with the collision detection protocols to control network access. 3. When the network transmits data, each an every LAN network device will receive it. 4. It is defined under IEEE standards 802.3. 5. It is low cost and easy to implement. 6. It also allows flexibility in terms of topologies. 7. It operates in two layers of OSI model : Physical layer and data link layer. 8. The protocol data unit is frame for Ethernet as it deals mainly with Data link layer.

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