Packet switching: is a digital networking communication method which breaks the large data into suitably sized blocks, known as packet. The IP is responsible for sending these packets to the right address by assigning them a sequence number. The packets are sent to a local internet service provider. From here the packets travel through multiple levels of networks, computers and communication lines before reaching the destination. This destination may be our own town or anywhere across the globe. When the information packets reach the destination computer, the TCP, with the help of packet switching, again assembles the packets into asingle message.
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