Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q701: If the delay for the first packet is 20 ms, the second is 45 ms, and the third is 40 ms, what issue arises?
- A: Bandwidth issue
- B: Jitter
- C: Latency
- D: Packet loss
View Answer
B
Q702: Fill in the blank: ______ occurs when different packets encounter different delays.
- A: Jitter
- B: Latency
- C: Propagation time
- D: Transmission time
View Answer
A
Q703: What does the bandwidth of a network define?
- A: Maximum data transfer rate
- B: Minimum data transfer rate
- C: Average delay
- D: Total jitter
View Answer
A
Q704: Fill in the blank: ______ refers to the total time taken for a packet to reach its destination.
- A: Bandwidth
- B: Delay
- C: Jitter
- D: Throughput
View Answer
B
Q705: How can the bandwidth-delay product be calculated?
- A: Bandwidth × Jitter
- B: Bandwidth ÷ Delay
- C: Bandwidth × Delay
- D: Bandwidth + Delay
View Answer
C
Q706: Which type of data is most affected by jitter?
- A: Text messages
- B: Time-sensitive data like audio/video
- C: Email
- D: File transfers
View Answer
B
Q707: What is the delay if the first packet takes 30 ms, the second 50 ms, and the third 40 ms?
- A: 40 ms
- B: 50 ms
- C: Average of all delays
- D: Cannot be determined
View Answer
C
Q708: What is the smallest entity that can represent a piece of information?
- A: Signal element
- B: Data element
- C: Bit
- D: Frame
View Answer
C
Q709: Fill in the blank: ______ is the shortest unit of a digital signal.
- A: Data element
- B: Signal element
- C: Frame
- D: Packet
View Answer
B
Q710: What is always needed in digital-to-digital conversion?
- A: Line coding
- B: Block coding
- C: Scrambling
- D: Modulation
View Answer
A