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WDM stands for?

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WDM stands for?

(a) Wave division multiplexing

(b) Wavelength division multiplexing

(c) Wavelength dependent multiplexing

(d) Wave dependent multiplexing

The question was posed to me in an interview for job.

Asked question is from Multiplexing in chapter Data Communications and Computer Networks of Computer Fundamentals

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Correct option is (b) Wavelength division multiplexing

The best I can explain: It stands for Wavelength division multiplexing. It has same general architecture as FDM. FDM is frequency division multiplexing.

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