1. What type of multiplexing use the entire bandwidth all of the time?

Statistical Time Division Multiplexing

Both TDM and FDM

Phase Division Multiplexing

Hierarchical Time Division Multiplexing

2.Data is the original information and signal is the information as it passes over the medium. What converts analog to digital signal?

Frequency Shifting

Pulse Code Modulation (It samples the wave )

Phase Shifting

Amplitude and Phase Shift

3.Which modulation involves only amplitude changes of the wave such used in radio communication?

8-PSK

FSK

8-QAM

AM

4.In Analog FDM (Frequency Division Multiplexing), if we did not have guard bands, it will be:

provide error checking

more frequency, not interference.

signal would travel faster

signal interference

Please explain