COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK TOPOLOGIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -CSMA/CD (Carrier Sense Multiple Access with Collision Detection) helps hosts to decide when to send packets on a shared network segment and how to detect collisions if they occur. For example, in a hub network, two devices can send packets at the same time. This can cause a collision.
Detailed explanation-2: -The most efficient way to set up a LAN with a star topology is by using a hub to direct the traffic between the connected devices. Collisions do not occur in a star topology, because the central device manages traffic by using the carrier-sense multiple access with collision detection (CSMA/CD) protocol.
Detailed explanation-3: -Which statement is true about the CSMA/CD access method that is used in Ethernet? All network devices must listen before transmitting.