Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q931: In which of the following does the data stream consist of binary data organized into groups of ‘n’ bits?
- A: Serial Transmission
- B: Parallel Transmission
- C: Asynchronous Transmission
- D: Synchronous Transmission
View Answer
B
Q932: Which of the following is true for data transmission in parallel mode?
- A: Requires fewer wires for faster data transfer
- B: Uses multiple wires to send bits simultaneously
- C: Only one wire is used to transfer bits
- D: None of the above
View Answer
B
Q933: Which type of data transmission requires ‘n’ wires to send ‘n’ bits at one time?
- A: Parallel Transmission
- B: Serial Transmission
- C: Bidirectional Transmission
- D: None of the above
View Answer
A
Q934: In serial transmission, data is transmitted _______.
- A: one bit at a time
- B: through multiple channels
- C: as a group of bits
- D: none of the above
View Answer
A
Q935: Which of the following is an advantage of serial transmission?
- A: Requires fewer wires
- B: Transfers data faster
- C: Has a higher error rate
- D: None of the above
View Answer
A
Q936: In serial transmission, data travels _______.
- A: through multiple wires
- B: one bit at a time
- C: over a single wire as a group
- D: of multiple wires
View Answer
B
Q937: In serial transmission, the number of communication channels used is _______.
- A: ‘n’ channels
- B: 1 channel
- C: 2 channels
- D: ‘n’ bits per channel
View Answer
B
Q938: What is the main disadvantage of serial transmission?
- A: It requires more wires
- B: Slower data transfer rate
- C: Lower error detection
- D: None of the above
View Answer
B
Q939: Which transmission method sends bits one after the other over a single channel?
- A: Parallel transmission
- B: Serial transmission
- C: Synchronous transmission
- D: Asynchronous transmission
View Answer
B
Q940: Which of the following is typically used in long-distance data communication?
- A: Parallel transmission
- B: Serial transmission
- C: Wireless transmission
- D: None of the above
View Answer
B