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Previous Year Question (PYQs)
2
Which of the following statements are true?
A. Frequency division multiplexing technique can be handled by digital circuits.
B. Time division multiplexing technique can be handled by analog circuits.
C. Wavelength division multiplexing technique is used with optical fiber for combining two signals.
D. Frequency division multiplexing technique can be applied when the bandwidth of a link is greater than the bandwidth of the signals to be transmitted.
Choose the correct answer from the options given below:
Solution
FDM is mainly an analog multiplexing technique, so statement A is false.
TDM is mainly used with digital signals, so statement B is false.
WDM is used in optical fiber communication to combine optical signals of different wavelengths, so statement C is true.
FDM can be used when link bandwidth is greater than the bandwidth required by the signals, so statement D is true.
Therefore, C and D only are true.
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