DATA LINK LAYER WIRED NETWORKS
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Connection
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Encapsulation
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Collision
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Transmission
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Detailed explanation-1: -On a half-duplex channel, if two devices try to transmit data at the same time, the result is a collision, which can include transmission errors and data loss. When a collision occurs, both devices detect it, and each then waits a random amount of time and retries until successful in getting the transmission sent.
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: -If two or more stations simultaneously begin to transmit, the transmitted frames will collide. Upon the collision detection, all the transmitting stations will terminate their own transmission and send a jamming sequence.