Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1041: In ASK, which signal characteristic is constant while transmitting binary data?
- A: Amplitude
- B: Frequency
- C: Phase
- D: Data Rate
View Answer
B
Q1042: Which of the following modulations is most affected by noise?
- A: Binary ASK
- B: Binary PSK
- C: Binary FSK
- D: QAM
View Answer
A
Q1043: The on-off nature of Binary ASK can also be referred to as _______.
- A: Binary Pulse Modulation
- B: On-Off Keying
- C: Amplitude Frequency Keying
- D: Binary Data Modulation
View Answer
B
Q1044: What is a major use case of Binary ASK?
- A: Radio broadcasting
- B: Optical communication
- C: Cellular networks
- D: Audio streaming
View Answer
B
Q1045: Which type of modulation varies the amplitude of the carrier signal based on digital data?
- A: Frequency Modulation
- B: Amplitude Shift Keying
- C: Phase Modulation
- D: Quadrature Modulation
View Answer
B
Q1046: In Binary ASK, what happens to the carrier signal when the binary input is 0?
- A: High amplitude
- B: Low amplitude
- C: Zero amplitude
- D: Unchanged
View Answer
C
Q1047: In Binary ASK, what characteristic of the carrier signal changes?
- A: Amplitude
- B: Frequency
- C: Phase
- D: Data Rate
View Answer
A
Q1048: What is another name for Binary ASK?
- A: Binary Phase Modulation
- B: On-Off Keying
- C: Frequency Modulation
- D: Signal Switching
View Answer
B
Q1049: The bandwidth for a Binary ASK signal is typically determined by the _______.
- A: Data Rate
- B: Carrier Frequency
- C: Amplitude
- D: Modulation Index
View Answer
A
Q1050: What happens to the carrier signal in Binary ASK when transmitting a binary 0?
- A: Amplitude is maximum
- B: Amplitude is zero
- C: Frequency is maximum
- D: Phase is shifted
View Answer
B