Packet

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What is an Packet?

A packet is a unit of data that is routed between an origin and a destination on the Internet or any other packet-switched network. When any file (such as e-mail message, HTML file, Graphics Interchange Format file, Uniform Resource Locator request) is sent from one place to another, the Transmission Control Protocol (TCP) layer of TCP/IP divides the file into smaller chunks ideal for routing.


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