Pulse Code Modulation (PCM) Encoding & Decoding of Band Limited Continuous Signal

Questionnair

Q.1    What causes the digital signal to change shape?
A)    Time expansion
B)    Bandwidth limitation
C)    Continuous signal
D)    None of these

Q.2    Process of converting samples of the analog input to binary coded pulses is called ____?
A)    Quantization
B)    Sampling
C)    Resolution
D)    ADC

Q.3    QAM is the most efficient than _________?
A)    PSK
B)    ASK
C)    FSK
D)    All

Q.4    The last process in PCM is _________ digital data into digital signal?
A)    Modulating
B)    Decoding
C)    Encoding
D)    None of these