Sampling and Quantization – 1 MCQ’s

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This set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Sampling and Quantization – 1″.

1. Source coding reduces
a) Redundancy
b) Average bit rate
c) Redundancy & Average bit rate
d) None of the mentioned

2. The quantization will be finer when
a) Smaller the number of discrete amplitudes
b) Larger the number of discrete amplitudes
c) Does not depend on amplitudes
d) None of the mentioned

3. Transmitted pulse becomes distorted due to
a) Ideal transmission characteristic
b) Non ideal transmission characteristic
c) All of the mentioned
d) None of the mentioned

4. Which signals are a function of time?
a) Random signal
b) Deterministic signal
c) Random & Deterministic signal
d) None of the mentioned

5. Delay element in delta modulation acts as
a) First order predictor
b) Second order predictor
c) Third order predictor
d) Fourth order predictor

6. Auto-correlation function is a
a) Even function
b) Odd function
c) Even & Odd function
d) None of the mentioned

7. Non uniform quantization includes
a) Compression
b) Expansion
c) Compression & Expansion
d) None of the mentioned

8. In which mixing is easier?
a) Analog signal
b) Digital signal
c) Analog & Digital signal
d) None of the mentioned

9. Different cases of sampling include
a) Ideal impulse sampling
b) Flat-topped sampling
c) Sampling with rectangular pulses
d) All of the mentioned

10. Shot noise occurs in
a) Transistors
b) Valves
c) Transistors & Valves
d) None of the mentioned

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