Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q921: In which transmission mode are bits sent one at a time, using a single wire?
- A: Parallel Transmission
- B: Serial Transmission
- C: Bidirectional Transmission
- D: Synchronous Transmission
View Answer
B
Q922: What is the main disadvantage of Parallel Transmission?
- A: It requires multiple wires
- B: Slower transmission speed
- C: Requires special encoding
- D: High error rates
View Answer
A
Q923: In data transmission, which of the following modes sends ‘n’ bits at a time?
- A: Serial Transmission
- B: Parallel Transmission
- C: Asynchronous Transmission
- D: None of the above
View Answer
B
Q924: Which of the following best describes Serial Transmission?
- A: Bits sent one at a time using a single wire
- B: Bits grouped into multiple parts and sent together
- C: Bits sent using multiple wires at the same time
- D: None of the above
View Answer
A
Q925: In Transmission of Data, _______ refers to how bits are sent: one at a time or in groups.
- A: Transmission Mode
- B: Transmission Medium
- C: Transmission Speed
- D: Transmission Power
View Answer
A
Q926: Which transmission mode is more cost-effective and simpler to implement?
- A: Parallel Transmission
- B: Serial Transmission
- C: Multi-path Transmission
- D: None of the above
View Answer
B
Q927: In data transmission, how are bits organized when using Parallel Transmission?
- A: One bit at a time in a single wire
- B: Grouped into ‘n’ bits and sent over ‘n’ wires
- C: Encoded into signals
- D: None of the above
View Answer
B
Q928: Which of the following is an example of Serial Transmission?
- A: USB communication
- B: Printer cables
- C: TV signals
- D: None of the above
View Answer
A
Q929: Which transmission mode would be used for a long-distance connection with lower transmission speed?
- A: Serial Transmission
- B: Parallel Transmission
- C: Asynchronous Transmission
- D: Synchronous Transmission
View Answer
A
Q930: When bits are grouped and sent at once, this is referred to as _______.
- A: Serial Transmission
- B: Parallel Transmission
- C: Bidirectional Transmission
- D: Synchronous Transmission
View Answer
B