Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 31
Q401:
Which of the following is an example of a periodic analog signal?
A. A sine wave
B. A digital clock
C. A message transmitted over the internet
D. A file transfer
Correct Answer:
A
Chapter: 31
Q402:
Fill in the blank: A non-periodic signal lacks a _______.
A. repeating pattern
B. fixed amplitude
C. continuous flow
D. defined frequency
Correct Answer:
A
Chapter: 31
Q403:
Fill in the blank: Digital signals are typically _______ signals.
A. non-periodic
B. periodic
C. analog
D. continuous
Correct Answer:
A
Chapter: 31
Q404:
Which of the following signals is typically periodic?
A. A sine wave
B. A digital image
C. An email message
D. A voice recording
Correct Answer:
A
Chapter: 31
Q405:
Fill in the blank: A digital signal can be _______ when it lacks a repeating pattern.
A. non-periodic
B. periodic
C. a sine wave
D. an analog signal
Correct Answer:
A
Chapter: 31
Q406:
Which type of signal can have a pattern that repeats over a specified time period?
A. Periodic signal
B. Non-periodic signal
C. Both periodic and non-periodic signals
D. None of the above
Correct Answer:
A
Chapter: 31
Q407:
Fill in the blank: A periodic signal can be defined by its _______ and cycle.
A. period
B. amplitude
C. waveform
D. frequency
Correct Answer:
A
Chapter: 31
Q408:
Which of the following types of signals does NOT have a repeating pattern?
A. Non-periodic signal
B. Periodic signal
C. Digital signal
D. Analog signal
Correct Answer:
A
Chapter: 31
Q409:
Fill in the blank: Analog signals are often periodic, whereas digital signals can be _______.
A. periodic or non-periodic
B. analog or continuous
C. random or irregular
D. binary or encoded
Correct Answer:
A
Chapter: 31
Q410:
Which of the following types of signals typically have irregular or random variations?
A. Non-periodic signals
B. Periodic signals
C. Digital signals
D. Analog signals
Correct Answer:
A
Chapter: 32
Q411:
A simple periodic analog signal is a _______.
A. Sine wave
B. Square wave
C. Triangular wave
D. Pulse wave
Correct Answer:
A
Chapter: 32
Q412:
Composite periodic analog signals are composed of _______.
A. Multiple sine waves
B. A single sine wave
C. Random noise
D. Digital signals
Correct Answer:
A
Chapter: 32
Q413:
Which of the following is an example of a composite periodic analog signal?
A. A signal composed of multiple sine waves
B. A single sine wave
C. A triangle waveform
D. A random noise signal
Correct Answer:
A
Chapter: 32
Q414:
A sine wave is an example of a _______ periodic analog signal.
A. Simple
B. Composite
C. Digital
D. Non-periodic
Correct Answer:
A
Chapter: 32
Q415:
Fill in the blank: Composite periodic analog signals are typically made up of _______.
A. multiple sine waves
B. random noise
C. a single sine wave
D. periodic square waves
Correct Answer:
A
Chapter: 32
Q416:
Which of the following is NOT a characteristic of a sine wave?
A. Composed of multiple sine waves
B. Has a smooth, continuous waveform
C. Repeats periodically over time
D. Has a single frequency
Correct Answer:
A
Chapter: 32
Q417:
Fill in the blank: A simple periodic analog signal, such as a sine wave, _______.
A. repeats continuously
B. is composed of multiple waves
C. contains only square waves
D. is non-periodic
Correct Answer:
A
Chapter: 32
Q418:
Which of the following best describes a composite periodic analog signal?
A. A signal made of multiple sine waves
B. A signal made of random noise
C. A single frequency signal
D. A non-repeating signal
Correct Answer:
A
Chapter: 32
Q419:
Fill in the blank: A sine wave has _______ frequency and amplitude over time.
A. constant
B. varying
C. no defined
D. fluctuating
Correct Answer:
A
Chapter: 32
Q420:
A sine wave is considered a _______ because it has a smooth, repetitive oscillation.
A. simple periodic analog signal
B. complex periodic signal
C. composite periodic analog signal
D. random signal
Correct Answer:
A