Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2811: Fill in the blank: In Ethernet, the value of 'a' is directly related to ________.
- A: Frame size
- B: Network speed
- C: Delay and distance
- D: Transmission error
View Answer
C
Q2812: The term 'a' in the efficiency formula of Ethernet signifies:
- A: Latency factor
- B: Bandwidth division
- C: Collision rate
- D: Frame fitting ratio
View Answer
D
Q2813: What does a lower value of 'a' indicate in Ethernet communication?
- A: Higher efficiency
- B: More collisions
- C: Lower bandwidth
- D: Higher delay
View Answer
A
Q2814: In Ethernet's efficiency calculation, a value of 'a' close to 0 results in:
- A: Low efficiency
- B: High efficiency
- C: No transmission
- D: No change
View Answer
B
Q2815: What unit is typically used to express 'a' in Ethernet efficiency?
- A: Milliseconds
- B: Frames per second
- C: Frames per delay
- D: No unit
View Answer
C
Q2816: Efficiency = 1 / (1 + 6.4 × a) shows the inverse relation between efficiency and ________.
- A: frame count
- B: latency
- C: value of 'a'
- D: collision duration
View Answer
C
Q2817: Which factor does NOT affect the value of 'a' in Ethernet?
- A: Propagation delay
- B: Frame length
- C: Transmission rate
- D: User IP address
View Answer
D
Q2818: Ethernet efficiency formula assumes that:
- A: Collision never occurs
- B: There is infinite bandwidth
- C: Frames are of fixed length
- D: A is based on delay and transmission speed
View Answer
D
Q2819: Which of the following can improve Ethernet efficiency?
- A: Increasing propagation delay
- B: Using smaller frames
- C: Decreasing the value of 'a'
- D: Adding more stations
View Answer
C
Q2820: Fill in the blank: Practical Ethernet efficiency is always _______ than theoretical maximum.
- A: higher
- B: equal
- C: less
- D: unpredictable
View Answer
C