COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK TOPOLOGIES AND PROTOCOLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -In connection-oriented packet switching, also called virtual circuit switching or circuit switching, data packets are first assembled and then numbered. They then travel across a predefined route, sequentially. Address information is not needed in circuit switching, because all packets are sent in sequence.
Detailed explanation-2: -Packet switching is an approach used by some computer network protocols to deliver data across a local or long-distance connection. Examples of packet switching protocols are Frame Relay, IP, and X.
Detailed explanation-3: -Expert-Verified Answer. c. The packet transfer delay between a pair of nodes is more or less constant. The method in which data is transferred to a network in the forms of packet is called packet switching.
Detailed explanation-4: -The correct answer is option (2) Circuit switching has less variation in packets than packet switching. Circuit switching send packet in order, while packet switching send out of order, so reordering needs in packet switching.