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Module 1: Physical Layer & Data Communication

20262m

Wavelength Division Multiplexing (WDM) is primarily associated with:

(i) Copper cables
(ii) Radio communication only
(iii) Optical fiber communication
(iv) Coaxial cable only

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(iii) Optical fiber communication

WDM sends several optical signals of different wavelengths (colors) simultaneously over a single fiber. It is the optical equivalent of FDM, so it applies to fiber, not copper or coaxial cable.

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