Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q551: In Fourier analysis, a vertical line in the time domain indicates _______.
- A: a frequency of zero
- B: a frequency of infinity
- C: a frequency of 100 Hz
- D: no frequency at all
View Answer
B
Q552: A horizontal line in the time domain represents _______.
- A: a frequency of zero
- B: a frequency of infinity
- C: a constant signal
- D: the highest possible frequency
View Answer
A
Q553: The transition from a frequency of zero to a frequency of infinity implies _______.
- A: all frequencies in between are part of the domain
- B: only the high frequencies are part of the domain
- C: only the low frequencies are part of the domain
- D: no frequencies are part of the domain
View Answer
A
Q554: The frequency range in a digital signal starts from _______ and goes to _______.
- A: zero, infinity
- B: one, ten
- C: zero, ten
- D: one, infinity
View Answer
A
Q555: In a digital signal, a vertical line in the time domain implies a frequency of _______.
- A: zero
- B: infinity
- C: a range of frequencies
- D: none of the above
View Answer
B
Q556: A digital signal's time domain representation uses _______ to show the composite nature of the signal.
- A: vertical and horizontal lines
- B: sine waves
- C: square waves
- D: constant lines
View Answer
A
Q557: The concept of "infinite bandwidth" in digital signals means that _______.
- A: the signal contains all frequencies
- B: the signal is purely sinusoidal
- C: the signal has only a few frequencies
- D: the signal is periodic
View Answer
A
Q558: Digital signals in the time domain comprise _______ to form the complete signal representation.
- A: discrete line segments
- B: smooth curves
- C: continuous waveforms
- D: periodic oscillations
View Answer
A
Q559: A digital signal’s frequency range is from _______ to _______ in Fourier analysis.
- A: zero to infinity
- B: one to ten
- C: zero to ten
- D: none of the above
View Answer
A
Q560: The vertical line in the time domain for a digital signal represents a frequency of _______.
- A: zero
- B: infinity
- C: a specific low frequency
- D: a specific high frequency
View Answer
B