DATA LINK LAYER WIRED NETWORKS
MULTIPLE ACCESS PROTOCOLS MAC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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overlap
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crossover
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collision
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None of the above
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Detailed explanation-1: -In a half-duplex Ethernet network, a collision is the result of two devices on the same Ethernet network attempting to transmit data at the same time. The network detects the collision of the two transmitted packets and discards them both. Collisions are a natural occurrence on Ethernets.
Detailed explanation-2: -With half-duplex (full-duplex will be described below) Ethernet, collisions occur when two or more devices attempt to send a frame at the same time. When frames collide, the frame must be retried, so each device delays (backs-off) a random amount of time and then retries.
Detailed explanation-3: -Ethernet. On Ethernet using shared media, collisions are resolved using carrier-sense multiple access with collision detection (CSMA/CD) in which the competing packets are discarded and re-sent one at a time.
Detailed explanation-4: -A collision is an event that happens on an Ethernet network when two stations simultaneously “talk” on the wire. Collisions are a normal part of life in an Ethernet network, and under most circumstances should not be considered a problem.