MCQs > Design & Multimedia > Digital Signal Processing MCQs > Basic Digital Signal Processing MCQs

Basic Digital Signal Processing MCQ

1. Each persons digital shadow is ____.

Answer

Correct Answer: The digital information generated about a person by organizations

Note: This Question is unanswered, help us to find answer for this one

2. In the accompanying figure, the text ?click to add title? is the title ____.

Answer

Correct Answer: Placeholder point

Note: This Question is unanswered, help us to find answer for this one

3. A(n) ____ signal is designed to represent computer data in a discrete high (on) or low (off) state.

Answer

Correct Answer: Digial

Note: This Question is unanswered, help us to find answer for this one

4. A digital signal composed of a pulse of positive voltage represents a(n) ____.

Answer

Correct Answer: 1

Note: This Question is unanswered, help us to find answer for this one

5. The aliasing problem can be better handled by the__________.

Answer

Correct Answer: Quardature Mirror Filter (QMF)

Note: This Question is unanswered, help us to find answer for this one

6. The Kaiser window design is used for ____________.

Answer

Correct Answer: F.I.R. filters

Note: This Question is unanswered, help us to find answer for this one

7. Anti-aliasing filter is basically a________.

Answer

Correct Answer: low pass filter

Note: This Question is unanswered, help us to find answer for this one

8. In a Butterworth low pass filter, we get a maximally flat response of ___________.

Answer

Correct Answer: Pass Band

Note: This Question is unanswered, help us to find answer for this one

9. The condition of periodicity for a continuous time signal can be defined mathematically as _______. (Note: Here "To" is the fundamental period.)

Answer

Correct Answer: x ( t ) = x ( t + To )

Note: This Question is unanswered, help us to find answer for this one

10. The Z-Transform is used to analyze ____________.

Answer

Correct Answer: discrete time signals

Note: This Question is unanswered, help us to find answer for this one

11. Which of the following is a time invariant system?

Answer

Correct Answer: y ( n ) = x ( 2 n )

Note: This Question is unanswered, help us to find answer for this one

12. A discrete time signal can be best analyzed by____________.

Answer

Correct Answer: a Z- Transform

Note: This Question is unanswered, help us to find answer for this one

13.

The sampling theorem holds true for the following condition________. (Note:  Here 'fs' is the sampling frequency, and 'w' is the maximum frequency of the continuous time signal x (t)).

Answer

Correct Answer: fs > 2 ω

Note: This Question is unanswered, help us to find answer for this one

14. The ALU of the ADSP 21XX family has two input ports named __________.

Answer

Correct Answer: X and Y

Note: This Question is unanswered, help us to find answer for this one

15. The signal cos(0.01πn) is_________.

Answer

Correct Answer: periodic

Note: This Question is unanswered, help us to find answer for this one

16. In Multirate Digital Signal Processing, the sampling rate of signals __________.

Answer

Correct Answer: is either increased or decreased

Note: This Question is unanswered, help us to find answer for this one

17. The term "filter" is used to describe a ___________.

Answer

Correct Answer: linear time invariant system

Note: This Question is unanswered, help us to find answer for this one

18. Which of the following systems is unstable?

Answer

Correct Answer: None of the above

Note: This Question is unanswered, help us to find answer for this one

19. The Flanging effect is a ____________.

Answer

Correct Answer: sound effect

Note: This Question is unanswered, help us to find answer for this one

20. The non-parametric methods for power spectrum estimation suffer from________.

Answer

Correct Answer: spectrum leakage effects

Note: This Question is unanswered, help us to find answer for this one

21. The circular frequency shift property is also known as __________.

Answer

Correct Answer: the quadrature modulation theorem

Note: This Question is unanswered, help us to find answer for this one

22. For the signal x ( t ) = 3cos600πt + 2cos1800πt , the folding frequency is __________.

Answer

Correct Answer: 500 Hz

Note: This Question is unanswered, help us to find answer for this one

23. In a Butterworth approximation for bilinear transformation, we have,

Answer

Correct Answer: Ω= 2 / Ts tan ωc / 2

Note: This Question is unanswered, help us to find answer for this one

24. Power signals are the signals having ________.

Answer

Correct Answer: finite non zero power

Note: This Question is unanswered, help us to find answer for this one

25. The ADSP-21XX family supports __________.

Answer

Correct Answer: a 24-bit instruction word

Note: This Question is unanswered, help us to find answer for this one

26. Digital Transmultiplexers are devices for converting ___________.

Answer

Correct Answer: TDM to FDM

Note: This Question is unanswered, help us to find answer for this one

27. The frequency warping effect occurs because of___________.

Answer

Correct Answer: non-linear mapping

Note: This Question is unanswered, help us to find answer for this one

28. The MUSIC ( Multiple Signal Classification ) method is used for ____________.

Answer

Correct Answer: estimation of noise frequency

Note: This Question is unanswered, help us to find answer for this one

29. The parametric methods for Power Spectrum Estimation provide __________.

Answer

Correct Answer: better frequency resolution

Note: This Question is unanswered, help us to find answer for this one

30. The finite impulse response ( F.I.R ) filters are also called_________.

Answer

Correct Answer: non-recursive filters

Note: This Question is unanswered, help us to find answer for this one

31. The Harvard Architecture referred to the computer architectures that used _____________.

Answer

Correct Answer: separate data storages for instructions and data

Note: This Question is unanswered, help us to find answer for this one

32. The ADSP-2100A has ____________.

Answer

Correct Answer: no on-chip memory

Note: This Question is unanswered, help us to find answer for this one

33. A continuous time signal is also known as a/an_______.

Answer

Correct Answer: analog signal

Note: This Question is unanswered, help us to find answer for this one

34. The type-1 chebyshev filter contains __________.

Answer

Correct Answer: all poles

Note: This Question is unanswered, help us to find answer for this one

35. Which of the following is a non-causal system?

Answer

Correct Answer: y ( n ) = cos x ( n )

Note: This Question is unanswered, help us to find answer for this one

36. Interfacing of digital systems with different sampling rates can be done efficiently by __________.

Answer

Correct Answer: both reduction and interpolation of the sampling rate

Note: This Question is unanswered, help us to find answer for this one

37. Signals that are statistically stationary can be better estimated with _________.

Answer

Correct Answer: Long data record

Note: This Question is unanswered, help us to find answer for this one

38. The fundamental period of signal 10sin(12πt) + 4sin(18πt) is______.

Answer

Correct Answer: 1/3 Sec

Note: This Question is unanswered, help us to find answer for this one

39. Quantization of a signal_____________.

Answer

Correct Answer: reduces bandwidth requirement

Note: This Question is unanswered, help us to find answer for this one

40. MAC is used for ___________.

Answer

Correct Answer: high speed multiplication

Note: This Question is unanswered, help us to find answer for this one

41. Continuous time signals have_____________.

Answer

Correct Answer: aperiodic spectra

Note: This Question is unanswered, help us to find answer for this one

42. Digital F.I.R. filters are so designed that they have linear phase characteristics in the _____________.

Answer

Correct Answer: pass band

Note: This Question is unanswered, help us to find answer for this one

43. Which one of the following is not a register associated with the Program Sequencer?

Answer

Correct Answer: System Register

Note: This Question is unanswered, help us to find answer for this one

44. A continuous time signal is said to be symmetrical or even if it satisfies the condition, _________.

Answer

Correct Answer: x ( t ) = x ( -t )

Note: This Question is unanswered, help us to find answer for this one

45. Environmental parameters like temperature, humidity etc. change the performance of __________.

Answer

Correct Answer: analog filters only

Note: This Question is unanswered, help us to find answer for this one

46. Sampling rate conversion by the rational number ( I / D = 1023 / 511 ) needs a polyphase filter with _________.

Answer

Correct Answer: 1023 subfilters

Note: This Question is unanswered, help us to find answer for this one

47. In order to design digital filter, an important condition is that, the response of filter should ___________.

Answer

Correct Answer: causal

Note: This Question is unanswered, help us to find answer for this one

48. The Discrete Fourier Transform ( DFT ) of unit impulse function is__________.

Answer

Correct Answer: 1

Note: This Question is unanswered, help us to find answer for this one

49. A non-periodic signal has a period ( T ) of _______.

Answer

Correct Answer: T = ∞
T = 0

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

50. In DFT, a circularly folded sequence is denoted by_________.

Answer

Correct Answer: x (( -n ))

Note: This Question is unanswered, help us to find answer for this one

51. If a Z-Transform is evaluated on the unit circle at evenly spaced points only, it becomes __________.

Answer

Correct Answer: DFT

Note: This Question is unanswered, help us to find answer for this one

52. The periodogram is _________.


Answer

Correct Answer: not a consistent estimate of the true power density spectrum

Note: This Question is unanswered, help us to find answer for this one