Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1021: The relationship between data rate and signal rate is essential in _______.
- A: Digital-to-Analog Conversion
- B: Error Correction
- C: Noise Filtering
- D: Signal Amplification
View Answer
A
Q1022: What happens to bandwidth when the signal rate increases?
- A: It increases
- B: It decreases
- C: It remains constant
- D: It fluctuates unpredictably
View Answer
A
Q1023: What is the purpose of baud rate in analog transmission?
- A: Measure bits transmitted per second
- B: Measure signal elements transmitted per second
- C: Indicate carrier signal strength
- D: Determine data element size
View Answer
B
Q1024: What defines a sine wave in digital-to-analog conversion?
- A: Amplitude and Frequency
- B: Amplitude, Frequency, and Phase
- C: Carrier Signal and Bandwidth
- D: Data Rate and Signal Rate
View Answer
B
Q1025: By changing one of the characteristics of a sine wave, what can it represent?
- A: Analog data
- B: Digital data
- C: Noise
- D: Error correction
View Answer
B
Q1026: What is the formula to calculate the bit rate if the signal carries 4 bits per element and transmits 1000 elements per second?
- A: Bit Rate = Signal Rate × Data Elements
- B: Bit Rate = Signal Rate ÷ Data Elements
- C: Bit Rate = Bandwidth × Signal Elements
- D: Bit Rate = Frequency × Baud Rate
View Answer
A
Q1027: Which of the following is NOT a characteristic of a sine wave in digital-to-analog conversion?
- A: Amplitude
- B: Frequency
- C: Phase
- D: Signal Rate
View Answer
D
Q1028: What is required to ensure real-time audio and video synchronization?
- A: Bit Rate
- B: Synchronous Transmission
- C: Isochronous Transmission
- D: Baud Rate
View Answer
C
Q1029: What are the characteristics of digital-to-analog conversion?
- A: Amplitude and Phase
- B: Frequency and Signal Strength
- C: Bit and Baud Rates, and Carrier Signal
- D: Data Rate and Bandwidth
View Answer
C
Q1030: In analog transmission, the bandwidth required is proportional to _______.
- A: Signal Rate
- B: Phase Shift
- C: Bit Rate
- D: Amplitude
View Answer
A