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Question

In ____ mode, the communication channel is used in both directions at the same time?

A
Full-duplex
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B
Simplex
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C
Half-duplex
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D
None of the above
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Solution

The correct option is A Full-duplex

In Full-duplex mode, the communication channel is used in both directions at the same time.

Full-duplex data transmission means that data can be transmitted in both directions on a signal carrier at the same time. For example, on a local area network with a technology that has full-duplex transmission, one workstation can be sending data on the line while another workstation is receiving data.

The primary difference between three modes of transmission is that in a simplex mode of transmission the communication is unidirectional or one-way whereas, in the half duplex mode of transmission the communication is two-directional, but the channel is interchangeably used by the both the connected devices.

An advantage of half-duplex is that the single track is cheaper than the double tracks. A full duplex communication channel is able to transmit data in both directions on a signal carrier at the same time. It is constructed as a pair of simplex links that allows bidirectional simultaneous transmission.


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