Answer: Data is transferred over computer networks through the process of packet switching, where data is divided into packets, transmitted individually, and reassembled at the receiving end.
Steps for Data Transfer Over Computer Network
- Packetization of Data: Data transfer involves the transfer of digital data signals across the internet in small pieces called packets (consisting of binary codes “0” & “1” ). These packets have a maximum limit of 1500 Bytes.
- Structure of Packets: These packets also have a header which tells us about the kind of data in the packet, its source, and its final destination along with sequence numbers and error-checking codes.
- Routing and Transmission: In this step all of these packets are routed and will travel across the network through different paths.
- Dynamic Path Selection: The internet is fast and robust because if one path is blocked due to traffic, then packet automatically takes another path to reach its final destination.
- Packet Reconstruction at Destination: Once all the packets arrive at the final destination, the receiver’s end computer will collect all of the packets sent by the source and assemble them back to recreate the original form.
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