Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
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
View Answer
A
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
View Answer
A
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
View Answer
A
Q394: The human voice, which varies smoothly over time, is an example of _______ data.
- A: analog
- B: digital
- C: encoded
- D: binary
View Answer
A
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
View Answer
A
Q396: A periodic signal has a _______.
- A: repeating pattern
- B: irregular pattern
- C: no pattern
- D: random intensity
View Answer
A
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
View Answer
A
Q398: Which type of signal has a repeating pattern over time?
- A: Periodic signal
- B: Non-periodic signal
- C: Digital signal
- D: Analog signal
View Answer
A
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
View Answer
A
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
View Answer
A