Which of the following communication technologies would MOST likely be used to increase bandwidth over an existing fiber optic network by combining multiple
signals at different wavelengths?
Dense wavelength-division multiplexing (DWDM) is a high-speed optical network type commonly used in MANs (metropolitan area networks). DWDM uses as many
as 32 light wavelengths on a single fiber, where each wavelength can support as many as 160 simultaneous transmissions using more than eight active
wavelengths per fiber.