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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When packets that carry the same information is copied
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When packets switch change routes as they are need to go to a different destination. As the previous packet has been destroyed
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When individual data packets follow different routes to get to a destination
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When packets that aren’t needed get destroyed and another data packet takes its place
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Detailed explanation-1: -Packet switching is the transfer of small pieces of data across various networks. These data chunks or “packets” allow for faster, more efficient data transfer. Often, when a user sends a file across a network, it gets transferred in smaller data packets, not in one piece.
Detailed explanation-2: -Packet switching is a method of data transmission whereby the data is divided in packets. Each packet is given a header containing information of the destination. Each packet is forwarded separately over the network via the most optimum route to the destination using the header information.
Detailed explanation-3: -Datagram Packet switching: In Datagram Packet Switching technique, the path is not fixed. Intermediate nodes take the routing decisions to forward the packets. Datagram Packet Switching is also known as connectionless switching.
Detailed explanation-4: -Each router examines and sends each IP packet individually-this is called packet switching. If the network changes, due to congestion or faults, routers can use an alternative interfaces to reach a destination. So packets may travel over different routes to reach the same destination.
Detailed explanation-5: -A network switch is a device that operates at the Data Link layer of the OSI model-Layer 2. It takes in packets being sent by devices that are connected to its physical ports and sends them out again, but only through the ports that lead to the devices the packets are intended to reach.