A) DQAM
B) High capacity data links
C) Modems
D) Parallel transmission
E) None of these
Correct Answer: C
Solution :
In multiplexing, the signals that carried by the channel are analogue and as such susceptible to picking up interference, this can't be removed from the signal. Each channel in the scheme needs a dedicated modem at each end of the channel to place the signal on a carrier and remove it at the far end.
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