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Data Communication MCQs with Answers

Practice important Data Communication MCQs with answers and explanations.

Multiple Choice Questions

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Q571: In digital signal transmission, the frequency of the signal typically spans from _______ to _______.
  • A: zero, infinity
  • B: one, ten
  • C: low, high
  • D: none of the above
View Answer
A

Q572: In the time domain, the vertical line in a digital signal corresponds to a frequency of _______.
  • A: infinity
  • B: zero
  • C: a constant frequency
  • D: a specific low frequency
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A

Q573: Which of the following is a characteristic of baseband transmission?
  • A: It transmits signals without converting them to analog
  • B: It uses frequency modulation
  • C: It uses a high pass filter
  • D: It only works with analog signals
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A

Q574: The transmission of digital signals over a low pass channel is associated with _______ transmission.
  • A: baseband
  • B: broadband
  • C: analog
  • D: digital
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A

Q575: What does modulation allow in broadband transmission?
  • A: Use of a bandpass channel
  • B: Transmission without a channel
  • C: Use of a low-pass channel
  • D: Continuous signal transmission
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A

Q576: Broadband transmission is preferred because it provides _______ than a low-pass channel.
  • A: more available bandwidth
  • B: slower data rates
  • C: higher signal quality
  • D: no signal loss
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A

Q577: Modulation is used in broadband transmission to convert the _______ signal into an analog form.
  • A: digital
  • B: low-pass
  • C: high-pass
  • D: continuous
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A

Q578: In broadband transmission, a channel's bandwidth does not start from _______.
  • A: zero
  • B: infinity
  • C: a fixed frequency
  • D: a variable value
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A

Q579: What does broadband transmission use to transmit signals?
  • A: Modulation
  • B: Direct transmission
  • C: Baseband transmission
  • D: Analog signals only
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A

Q580: In broadband transmission, modulation is used to change the digital signal into a(n) _______ signal for transmission.
  • A: analog
  • B: low-pass
  • C: high-frequency
  • D: baseband
View Answer
A

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