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Gopal Sharma • 38.32K Points
Coach 

Q. Examples of PCM waveforms are

(A) non return to zero
(B) phase encoded
(C) multilevel binary
(D) all of the mentioned
Correct : Option (D)

Explanation: 
 some of the examples or classification of pulse code modulated signals are non return to zero, return to zero, phase encoded, multilevel binary etc.

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