Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q911: Which component of Delta Modulation is used to convert digital signals back to analog signals?
- A: Delta Modulation Component
- B: Delta Demodulation Component
- C: Quantization Component
- D: Sampling Component
View Answer
B
Q912: Delta Modulation (DM) does not use code words like Pulse Code Modulation (PCM), instead it focuses on _______.
- A: Changes in amplitude
- B: High-frequency signals
- C: Delta signals
- D: None of the above
View Answer
C
Q913: Delta Demodulation is part of the _______ process.
- A: Signal conversion
- B: Signal quantization
- C: Signal encoding
- D: Signal transmission
View Answer
A
Q914: Which of the following is a characteristic of Delta Modulation?
- A: It is based on the differences between consecutive samples.
- B: It uses a large number of code words for encoding.
- C: It provides high accuracy by encoding each sample individually.
- D: None of the above
View Answer
A
Q915: Delta Modulation (DM) is particularly useful when dealing with _______ signals.
- A: Slowly varying
- B: High-frequency
- C: Periodic
- D: Noise-contaminated
View Answer
A
Q916: Which of the following is NOT true about Delta Modulation?
- A: It finds the change from the previous sample.
- B: It uses a large number of code words.
- C: It does not require complex encoding.
- D: None of the above
View Answer
B
Q917: In data transmission, when bits are grouped into larger groups, it is called _______.
- A: Serial Transmission
- B: Parallel Transmission
- C: Binary Encoding
- D: Group Transmission
View Answer
B
Q918: What is required for Parallel Transmission?
- A: Multiple wires
- B: Single wire
- C: Modulator
- D: Encoder
View Answer
A
Q919: Parallel Transmission requires _______ to send multiple bits at once.
- A: n wires
- B: one wire
- C: encoding methods
- D: special data streams
View Answer
A
Q920: Which of the following is an advantage of Parallel Transmission?
- A: Faster data transfer rate
- B: Lower cost
- C: Single wire transmission
- D: None of the above
View Answer
A