A communications device that combines transmissions from several 1/ O

1.	A communications device that combines transmissions from several 1/ O devices into one line is a:
A.	concentrator
B.	modifier
C.	multiplexer
D.	full-duplex line
E.	None of the above
Answer» D. full-duplex line

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A communications device that combines transmissions from several 1/ O devices into one line is a:

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