To get constant time delay, we should use ________(a) FDM technique(b) WDM technique(c) Synchronous TDM(d) Non synchronous TDMI have been asked this question in an online interview.My question is taken from FDM System topic in chapter Amplitude Modulation of Analog Communications

To get constant time delay, we should use ________(a) FDM technique(b)

1.	To get constant time delay, we should use ________(a) FDM technique(b) WDM technique(c) Synchronous TDM(d) Non synchronous TDMI have been asked this question in an online interview.My question is taken from FDM System topic in chapter Amplitude Modulation of Analog Communications
Answer» The CORRECT answer is (c) Synchronous TDM The explanation is: TDM is a method of allowing multiple data streams in a single signal by separating the signal into many segments, each having a very short duration. Each INDIVIDUAL data stream is reassembled at the receiving end based on the timing. Synchronous TDM gives exactly the same amount of time to each connected device. It allocates time to every device even if a device has nothing to transmit. Thus, Synchronous Time Division Multiplexing is used to provide constant time DELAY. It can ALSO provide constant bandwidth.

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