Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q691: For a 5-MB message sent over a network with a bandwidth of 1 Mbps, what is the transmission time?
- A: 10 s
- B: 20 s
- C: 40 s
- D: 50 s
View Answer
C
Q692: What is the propagation time if the distance is 12,000 km, and light travels at 2.4 × 10^8 m/s?
- A: 50 ms
- B: 60 ms
- C: 40 ms
- D: 45 ms
View Answer
A
Q693: Which factor dominates for a large message sent over a low-bandwidth network?
- A: Transmission time
- B: Propagation time
- C: Queuing delay
- D: Processing delay
View Answer
A
Q694: Fill in the blank: Throughput is the measure of ______.
- A: Theoretical capacity
- B: Actual data transfer rate
- C: Signal quality
- D: Frame size
View Answer
B
Q695: Calculate the propagation time for a 12,000 km cable with a propagation speed of 2.4 × 10^8 m/s.
- A: 45 ms
- B: 50 ms
- C: 60 ms
- D: 55 ms
View Answer
B
Q696: What does the Bandwidth-Delay Product define?
- A: Link capacity
- B: Number of bits that can fill a link
- C: Speed of the network
- D: Data size
View Answer
B
Q697: Fill in the blank: ______ is the product of bandwidth and delay.
- A: Jitter
- B: Bandwidth-Delay Product
- C: Throughput
- D: Latency
View Answer
B
Q698: In the analogy of a pipe, what does the cross-section represent?
- A: Bandwidth
- B: Delay
- C: Throughput
- D: Latency
View Answer
A
Q699: In the analogy of a pipe, what does the length of the pipe represent?
- A: Bandwidth
- B: Delay
- C: Jitter
- D: Latency
View Answer
B
Q700: What is jitter in networking?
- A: Variation in packet delays
- B: Total delay in packet transmission
- C: Bandwidth-Delay Product
- D: Network speed
View Answer
A