Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1031: What is the purpose of the carrier signal in analog transmission?
- A: Carry the signal over a distance
- B: Reduce noise in the signal
- C: Correct errors during transmission
- D: Change data elements into signal elements
View Answer
A
Q1032: Which characteristic of a sine wave remains constant in Binary Amplitude Shift Keying?
- A: Frequency
- B: Amplitude
- C: Phase
- D: Data Rate
View Answer
A
Q1033: In Binary Amplitude Shift Keying, the amplitude of the carrier signal is _______.
- A: Constant
- B: Varied
- C: Irrelevant
- D: Reduced
View Answer
B
Q1034: In Binary Amplitude Shift Keying (Binary ASK), what characteristic of the carrier signal changes?
- A: Amplitude
- B: Frequency
- C: Phase
- D: Signal Rate
View Answer
A
Q1035: What remains constant in Binary ASK?
- A: Amplitude and Frequency
- B: Phase and Frequency
- C: Amplitude and Phase
- D: Data Rate and Signal Rate
View Answer
B
Q1036: What is varied in Amplitude Shift Keying (ASK) to create signal elements?
- A: Amplitude
- B: Frequency
- C: Phase
- D: Data Rate
View Answer
A
Q1037: What does ASK stand for in digital modulation?
- A: Amplitude Signal Keying
- B: Analog Signal Keying
- C: Amplitude Shift Keying
- D: Analog Shift Keying
View Answer
C
Q1038: What is another name for Binary ASK?
- A: Phase Modulation
- B: On-Off Keying
- C: Frequency Modulation
- D: Signal Shift Keying
View Answer
B
Q1039: In ASK, how many amplitude levels are used in binary data representation?
- A: One
- B: Two
- C: Three
- D: Four
View Answer
B
Q1040: What is the primary disadvantage of Binary ASK?
- A: Susceptible to noise
- B: Complex design
- C: High bandwidth requirement
- D: Requires multiple carrier signals
View Answer
A