Modulation is a process where the information of a signal source is processed and added to a carrier
to make the information suitable for channel transmission. It is a technology where a carrier changes
with a signal.
Question No 2
Which of the following are not features of WDM network expansion?
Question No 3
Which of the following is not an advantage of WDM?
Question No 4
Which of the following features is used by a laser to coherently receive optical signals and restore the
amplitude, phase, and state of polarization information from the received signals?
Question No 5
Fill in Blank Wavelength division multiplexing (WDM) refers to a technology that transmits optical signals at____over one optical fiber. (Enter only lowercase letters.)