Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 43
Q561:
Digital signals can be _______ or non-periodic and are composite analog signals with frequencies between zero and infinity.
A. periodic
B. non-periodic
C. continuous
D. discrete
Correct Answer:
B
Chapter: 43
Q562:
In the time domain, a vertical line corresponds to a frequency of _______.
A. infinity
B. zero
C. 100 Hz
D. a low frequency
Correct Answer:
A
Chapter: 43
Q563:
A horizontal line in the time domain corresponds to a frequency of _______.
A. infinity
B. zero
C. a mid-range frequency
D. a specific high frequency
Correct Answer:
B
Chapter: 43
Q564:
Going from a frequency of zero to a frequency of infinity implies that _______.
A. all frequencies in between are part of the domain
B. only the low frequencies are included
C. only the high frequencies are included
D. no frequencies are involved
Correct Answer:
A
Chapter: 43
Q565:
Baseband transmission refers to the sending of a digital signal _______.
A. without converting it to an analog signal
B. after converting it to an analog signal
C. using analog methods only
D. through a low pass filter
Correct Answer:
A
Chapter: 43
Q566:
In baseband transmission, the signal is sent through a _______ channel.
A. low pass
B. high pass
C. band pass
D. wide pass
Correct Answer:
A
Chapter: 43
Q567:
Digital signals, based on Fourier analysis, are considered composite _______ signals.
A. analog
B. digital
C. noise
D. pure signals
Correct Answer:
A
Chapter: 43
Q568:
Baseband transmission is often used in _______ communication systems.
A. low pass filters
B. high speed analog systems
C. low speed digital systems
D. broadband systems
Correct Answer:
C
Chapter: 43
Q569:
The frequency range of a digital signal in the time domain is from _______ to _______.
A. zero to infinity
B. one to ten
C. zero to one
D. ten to twenty
Correct Answer:
A
Chapter: 43
Q570:
Baseband transmission is used in situations where _______.
A. the digital signal is sent without conversion
B. high-frequency analog signals are used
C. the signal needs to be transmitted over long distances
D. a frequency shift is required
Correct Answer:
A
Chapter: 43
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
Correct Answer:
A
Chapter: 43
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
Correct Answer:
A
Chapter: 43
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
Correct Answer:
A
Chapter: 43
Q574:
The transmission of digital signals over a low pass channel is associated with _______ transmission.
A. baseband
B. broadband
C. analog
D. digital
Correct Answer:
A
Chapter: 44
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
Correct Answer:
A
Chapter: 44
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
Correct Answer:
A
Chapter: 44
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
Correct Answer:
A
Chapter: 44
Q578:
In broadband transmission, a channel's bandwidth does not start from _______.
A. zero
B. infinity
C. a fixed frequency
D. a variable value
Correct Answer:
A
Chapter: 44
Q579:
What does broadband transmission use to transmit signals?
A. Modulation
B. Direct transmission
C. Baseband transmission
D. Analog signals only
Correct Answer:
A
Chapter: 44
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
Correct Answer:
A