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Question

Which technique allows the simultaneous transmission of multiple signals across a single data link.

A
Broadcasting
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B
Networking
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C
Multiplexing
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D
None of the above
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Solution

The correct option is C Multiplexing

Multiplexing technique allows the simultaneous transmission of multiple signals across a single data link.

Frequency Division Multiplexing is a technique that can be applied when the bandwidth of a link is greater than combined bandwidth of signals to be transmitted.Correct. Wavelength Division Multiplexing (WDM) is an analog multiplexing Technique to combine optical signals.Correct.

In telecommunications and computer networks, multiplexing (sometimes contracted to muxing) is a method by which multiple analog or digital signals are combined into one signal over a shared medium. The aim is to share a scarce resource.

Multiplexing is a technique in which several message signals are combined into a composite signal for transmission over a common channel. ... Basically, multiplexing is of two types as under: Frequency Division Multiplexing (FDM) Time Division Multiplexing (FDM)

The modulation can be AM,SSB, FM or PM . The modulated signals are then added together to form a composite signal which is transmitted over a single channel . The spectrum of composite FDM signal has been shown in fig.1 . Generally, the FDM systems are used for multiplexing the analog signals .


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