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UGC NET CSE | June 2013 | Part 3 | Question: 53

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Answer A

The BSC is a binary channel; is a model in which one node transmits either 0 or 1 to another node.

At a time only one node can send; other will be in receiving mode.

If the transmission is not perfect  the receiver gets the wrong bit.

A non-binary channel would be capable of transmitting more than 2 symbols, possibly even an infinite number of choices.

I half duplex mode, At a time only one node can send; other will be in receiving mode.

The best analogy is railway track. A track can support a train to move in two directions. but a t a time it supporst only one train in only one direction!

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