Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1161: In Amplitude Modulation (AM), the information signal is combined with a _______.
- A: Carrier signal
- B: Noise signal
- C: Digital signal
- D: Modulated wave
View Answer
A
Q1162: The process of varying the amplitude of a carrier signal based on an input signal is known as _______.
- A: Frequency Modulation
- B: Amplitude Modulation
- C: Phase Modulation
- D: Pulse Modulation
View Answer
B
Q1163: Which of the following is NOT an application of Amplitude Modulation?
- A: AM Radio
- B: Television Broadcasting
- C: Frequency Hopping
- D: Two-way radio communication
View Answer
C
Q1164: In AM, what remains constant while the amplitude changes?
- A: Frequency
- B: Amplitude
- C: Wavelength
- D: Bandwidth
View Answer
A
Q1165: The modulation index in AM determines _______.
- A: Carrier Frequency
- B: Power Efficiency
- C: Noise Resistance
- D: Bit Rate
View Answer
B
Q1166: Which type of modulation varies the amplitude of the carrier signal?
- A: Frequency Modulation
- B: Phase Modulation
- C: Amplitude Modulation
- D: Pulse Code Modulation
View Answer
C
Q1167: The efficiency of AM transmission depends on _______.
- A: Carrier Power
- B: Modulation Index
- C: Frequency Bandwidth
- D: Signal Latency
View Answer
B
Q1168: The main disadvantage of Amplitude Modulation is _______.
- A: High noise susceptibility
- B: Low power consumption
- C: Complexity of implementation
- D: High bandwidth requirement
View Answer
A
Q1169: In AM, which component carries the actual message information?
- A: Carrier wave
- B: Sidebands
- C: Noise signal
- D: Modulated wave
View Answer
B
Q1170: The frequency range for AM broadcasting is typically between _______.
- A: 500 Hz - 5 kHz
- B: 530 kHz - 1700 kHz
- C: 1 MHz - 100 MHz
- D: 88 MHz - 108 MHz
View Answer
B