User Datagram Protocol

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The User Datagram Protocol (UDP) is one of the core protocols of the Internet protocol suite. Using UDP, programs on networked computers can send short messages known as datagrams to one another. UDP does not provide the reliability and ordering guarantees that TCP does; datagrams may arrive out of order or go missing without notice. However, as a result, UDP is faster and more efficient for many lightweight or time-sensitive purposes. Also its stateless nature is useful for servers that answer small queries for huge numbers of clients.

Related Topics:
Internet protocol suite - Datagrams - TCP

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Common network applications that use UDP include the Domain Name System (DNS), streaming media applications, Voice over IP, and online games.

Related Topics:
Domain Name System - Streaming media - Voice over IP - Online game

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