DATA LINK LAYER WIRED NETWORKS
CONNECTING DEVICES
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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: -In parallel transmission, multiple bits (usually 8 bits or a byte/character) are sent on different channels (wires, channels) simultaneously within the same cable, or radio path, and synchronized to a clock. Parallel devices can transfer data in words of one or more bytes at a time.
Detailed explanation-2: -Transmission Modes: In parallel data communication, although eight bits can be sent at a time, it has a half-duplex transmission mode. This is because the data can be either sent or received at a time. However, in serial transmission, the sender can receive and send the data simultaneously.
Detailed explanation-3: -Parallel transmission can send information from computer to printer. The printer is linked to the parallel port of the computer and a parallel cable that has multiple wires can link the printer to the computer. It is a very fast data transmission mode.