Communications MCQ Set 1 1. Frequency difference between WDM (Wavelength Division Multiplexing) and FDM (Frequency Division Multiplexing) is ________ a) low b) high c) slightly greater than 1 d) infinity AnswerAnswer: d [Reason:] WDM (Wave Division Multiplexing) uses some basic principles of FDM (Frequency Division Multiplexing). FDM is used for analog signals transmitted through twisted…