Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q11: Which of the following is included in telecommunications?
- A: Telephony
- B: Telegraph
- C: Television
- D: All of the above
View Answer
D
Q12: Fill in the blank: Data communications involve the exchange of _______ between two devices.
- A: Text
- B: Data
- C: Signals
- D: Media
View Answer
B
Q13: What is the focus of data communications?
- A: Sharing data locally
- B: Exchanging data via transmission media
- C: Remote communication only
- D: None of the above
View Answer
B
Q14: Which of these is NOT a component of telecommunications?
- A: Telephony
- B: Telegraph
- C: Database management
- D: Television
View Answer
C
Q15: Fill in the blank: Telecommunications is defined as communication at a _______.
- A: Local level
- B: Global scale
- C: Distance
- D: High frequency
View Answer
C
Q16: What distinguishes telecommunications from general communication?
- A: It is limited to text messages
- B: It involves data exchange
- C: It is specifically at a distance
- D: It only occurs in real-time
View Answer
C
Q17: What are the key characteristics of a data communication system?
- A: Delivery and security
- B: Accuracy and confidentiality
- C: Delivery and accuracy
- D: Confidentiality and jitter
View Answer
C
Q18: Which of the following is NOT a characteristic of an effective data communication system?
- A: Timeliness
- B: Jitter
- C: Confidentiality
- D: Accuracy
View Answer
C
Q19: Fill in the blank: An effective data communication system must ensure _______.
- A: Delivery and accuracy
- B: Security and confidentiality
- C: Real-time processing
- D: High bandwidth
View Answer
A
Q20: What does "jitter" refer to in data communication?
- A: Delay in delivery
- B: Variability in latency
- C: Error in transmission
- D: Loss of data packets
View Answer
B