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GATE | GATE-IT-2004 | Question 22
  • Last Updated : 30 Nov, 2015

Which one of the following statements is FALSE?
(A) Packet switching leads to better utilization of bandwidth resources than circuit switching.
(B) Packet switching results in less variation in delay than circuit switching.
(C) Packet switching requires more per packet processing than circuit switching
(D) Packet switching can lead to reordering unlike in circuit switching


Answer: (B)

Explanation: Packet-switched networks move data in separate, small packets — based on the destination address in each packet. When received, packets are reassembled in the proper sequence to make up the message.

Circuit-switched networks require dedicated point-to-point connections during calls.

  • Packet switching leads to better utilization of bandwidth resources than circuit switching //Because data move in packets therefore better use of resources
  • Packet switching results in less variation in delay than circuit switching. //Queueing Delay fluctuation is more in packet switching as  there is no dedicated path
  • Packet switching requires more per packet processing than circuit switching   //All the info needs to be in packet as well as packet reassembling has to be done at end therefore more processing
  • Packet switching can lead to reordering unlike in circuit switching //because reassembling is done at destination,packing reordering might occur

Therefore only B is false 

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