Digital Communication MCQs
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Digital Communication MCQs
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25 Questions

1. The preferred orthogonalization process for its numerical stability is
2. The time interval over which the received signal may be sampled without error may be explained by
3. In Delta modulation,
4. The noise that affects PCM
5. In Binary Phase Shift Keying system, the binary symbols 1 and 0 are represented by carrier with phase shift of
6. Code rate r, k information bits and n as total bits, is defined as
7. The maximum data transmission rate in T1 carrier system is
8. Parity check bit coding is used for
9. The technique that may be used to increase average information per bit is
10. Advantages of using AMI
11. The polarities in NRZ format use
12. The mutual information
13. Polar coding is a technique in which
14. The format in which the positive half interval pulse is followed by a negative half interval pulse for transmission of ‘1’ is
15. The number of voice channels that can be accommodated for transmission in T1 carrier system is
16. The number of bits of data transmitted per second is called
17. The minimum distance for unextended Golay code is
18. The digital modulation technique in which the step size is varied according to the variation in the slope of the input is called
19. For a (7, 4) block code, 7 is the total number of bits and 4 is the number of
20. In MSK, the difference between the higher and lower frequency is
21. The memory less source refers to
22. The technique that may be used to reduce the side band power is
23. Zero forced equalizers are used for
24. In DPSK technique, the technique used to encode bits is
25. Probability density function defines

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