Carrier Sense Multiple Access with Collision Detection is the most correct answer. CSMA/CD works by checking for active communications and attempting to transmit when clear. If a collision occurs, then it will use the back-off timer.
CSMA with Collision Avoidance is incorrect. Since it is not conventionally possible to determine if or when a device is transmitting, collisions are inevitable. To counter this, a timer mechanism is in place to regulate transmissions and will back-off pre-emptively, actively avoiding as many collisions as it can.
Multiprotocol Label Switching is incorrect; this relates to labelling switched traffic of different protocols and has no relevance to collision aversion.
Open Shortest Path First is incorrect; OSPF helps find the shortest path through a network for fast and efficient delivery of data and has no relevance to collision aversion.
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Takoyaki
Highly Voted 4 years, 7 months ago