Which media access control method is used by Ethernet technology to minimize collisions in the network?

Last Updated on August 7, 2021 by Admin 3

Which media access control method is used by Ethernet technology to minimize collisions in the network?

  • CSMA/CD
  • token passing
  • back-on algorithm
  • full-duplex
Explanation:
Carrier Sense Multiple Access – Collision Detection (CSMA/CD) is used by Ethernet technology to minimize collisions in the network. The CSMA/CD method uses a back-off algorithm to calculate random time for retransmission after a collision. When two stations start transmitting at the same time, their signals will collide. The CSMA/CD method detects the collision, and both stations hold the retransmission for a certain amount of time that is determined by the back-off algorithm. This is an effort to help ensure that the retransmitted frames do not collide.

Token passing is used by the token-ring network topology to control communication on the network.

Full-duplex is the Ethernet communication mode that allows workstation to send and receive simultaneously. With the use of full-duplex, the bandwidth of the station can effectively be doubled. Hubs are not capable of handling full-duplex communication. You need dedicated switch ports to allow full-duplex communication.

The back-on algorithm is an invalid option. There is no such contention method.

Objective:
LAN Switching Fundamentals
Sub-Objective:
Describe and verify switching concepts

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