Which of the following statement is False?
2021
Which of the following statement is False?
- A.
Packet switching leads to better utilization of bandwidth resources than circuit switching.
- B.
Packet switching results in less variation in the delay than circuit switching.
- C.
Packet switching sender and receiver can use any bit rate, format or framing method unlike circuit switching.
- D.
Packet switching can lead to reordering unlike circuit switching.
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Correct answer: B
Answer: The false statement is "Packet switching results in less variation in the delay than circuit switching."
Reasoning:
Circuit switching reserves an end-to-end path and bandwidth for the duration of a connection, so once the circuit is set up delay is stable and variation is low.
Packet switching forwards individual packets that may experience different queuing and transmission delays at each hop, producing variable delay (jitter) and therefore greater delay variation.
Because packet switching has variable queuing and routing, the correct relationship is that packet switching generally results in more delay variation than circuit switching, making the given statement false.
Notes on the other statements:
Packet switching leads to better utilization of bandwidth than circuit switching because resources are shared dynamically (statistical multiplexing).
Packet switching allows sender and receiver to use different bit rates or framing methods because packets encapsulate data and networks forward them independently of endpoint framing.
Packet switching can cause packet reordering due to per-packet routing and variable delays, whereas a circuit preserves order along the dedicated path.
Conclusion: The statement claiming packet switching results in less delay variation is incorrect; packet switching typically produces more delay variation than circuit switching.
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