Question: 1. Draw Encoder,Decoder, Multiplexer and their application 2. Describe Analog to digital conversion PCM 3. Bandwidth, Carrier signal, amplifier. 4. Function of Modem, modulation, Demodulation.

1. Draw Encoder,Decoder, Multiplexer and their application

2. Describe Analog to digital conversion PCM

3. Bandwidth, Carrier signal, amplifier.

4. Function of Modem, modulation, Demodulation.

5. Draw AM/FM/PM waveforms(101100 stream, 1 High, 0 low)

6. Circuit switch, Packet switch

7. Calculate DS0, T1 and OC3 bit rates

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