DWDM stands for:
a. Digital Wavelength-Division Modulation b. Dense Wavelength-Division Modulation c. Double Wavelength-Division Modulation d. Dense Wavelength-Division Multiplexing
a. Digital Wavelength-Division Modulation b. Dense Wavelength-Division Modulation c. Double Wavelength-Division Modulation d. Dense Wavelength-Division Multiplexing