Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 30
Q381:
Which of the following is an example of analog data?
A. Human voice
B. Computer data
C. Text messages
D. Email
Correct Answer:
A
Chapter: 30
Q382:
Fill in the blank: An analog signal has an _______ number of intensity levels.
A. infinite
B. finite
C. limited
D. undefined
Correct Answer:
A
Chapter: 30
Q383:
Which of the following is an example of digital data?
A. Data in a computer
B. Radio signals
C. Sound waves
D. Temperature readings
Correct Answer:
A
Chapter: 30
Q384:
Fill in the blank: Analog signals can take on an _______ number of values.
A. infinite
B. finite
C. limited
D. discrete
Correct Answer:
A
Chapter: 30
Q385:
The primary difference between analog and digital signals is that analog signals have _______ over time.
A. infinite levels of intensity
B. a limited number of defined values
C. fixed amplitude
D. encoded frequency
Correct Answer:
A
Chapter: 30
Q386:
Analog signals represent data by _______.
A. varying intensity levels
B. discrete steps
C. a binary pattern
D. encoded values
Correct Answer:
A
Chapter: 30
Q387:
Fill in the blank: Digital signals represent data using a _______ number of defined values.
A. limited
B. infinite
C. arbitrary
D. random
Correct Answer:
A
Chapter: 30
Q388:
An analog signal, such as the human voice, is characterized by _______ intensity levels.
A. infinite
B. a fixed set
C. digital encoding
D. being discrete
Correct Answer:
A
Chapter: 30
Q389:
Which of the following examples represents an analog signal?
A. Analog clock
B. Digital thermometer
C. Digital image
D. Computer binary data
Correct Answer:
A
Chapter: 30
Q390:
Fill in the blank: Digital signals can only represent data with a _______ number of levels.
A. limited
B. infinite
C. continuous
D. undefined
Correct Answer:
A
Chapter: 30
Q391:
Which of the following is a characteristic of digital data?
A. Discrete values
B. Continuous intensity levels
C. Infinite frequency range
D. Analog representation
Correct Answer:
A
Chapter: 30
Q392:
Fill in the blank: A digital signal typically uses _______ to represent information.
A. binary code
B. continuous frequency
C. amplitude variations
D. light intensity changes
Correct Answer:
A
Chapter: 30
Q393:
Which of the following is an example of a digital signal?
A. A computer's USB connection
B. A radio transmission
C. An analog clock
D. A human voice
Correct Answer:
A
Chapter: 30
Q394:
The human voice, which varies smoothly over time, is an example of _______ data.
A. analog
B. digital
C. encoded
D. binary
Correct Answer:
A
Chapter: 30
Q395:
Fill in the blank: _______ is the process used to convert analog data into a digital form for processing by computers.
A. Sampling
B. Modulation
C. Encoding
D. Amplification
Correct Answer:
A
Chapter: 31
Q396:
A periodic signal has a _______.
A. repeating pattern
B. irregular pattern
C. no pattern
D. random intensity
Correct Answer:
A
Chapter: 31
Q397:
A non-periodic signal _______.
A. does not have a repeating pattern
B. repeats at regular intervals
C. has a fixed cycle
D. has a known period
Correct Answer:
A
Chapter: 31
Q398:
Which type of signal has a repeating pattern over time?
A. Periodic signal
B. Non-periodic signal
C. Digital signal
D. Analog signal
Correct Answer:
A
Chapter: 31
Q399:
Periodic analog signals are characterized by _______.
A. a repeating cycle of intensity levels
B. random intensity variations
C. discrete amplitude values
D. no fixed frequency
Correct Answer:
A
Chapter: 31
Q400:
Fill in the blank: Non-periodic digital signals _______.
A. do not have a repeating pattern
B. repeat at regular intervals
C. have a fixed cycle
D. are encoded in binary form
Correct Answer:
A