Noun
English Wikipedia has an article on:User Datagram ProtocolWikipedia
user datagram protocol (uncountable) (abbreviated as: UDP)
(Internet) A communications protocol that has no error recovery features, and is mostly used to stream material over the Internet.
Because of these transactional mechanisms, unreliable transport protocols, such as the User Datagram Protocol (UDP), are sufficient for SIP operation. Source: Internet
On Unix-like operating systems, the traceroute utility uses User Datagram Protocol (UDP) datagrams by default, with destination port numbers ranging from 33434 to 33534. Source: Internet
It runs on the Transmission Control Protocol (TCP), the User Datagram Protocol (UDP) or the Stream Control Transmission Protocol (SCTP). Source: Internet
Generally, where TCP is unsuitable, the User Datagram Protocol (UDP) is used. Source: Internet
However HTTP can be adapted to use unreliable protocols such as the User Datagram Protocol (UDP), for example in HTTPU and Simple Service Discovery Protocol (SSDP). Source: Internet
Limited, 2012 Protocol transport DNS primarily uses the User Datagram Protocol (UDP) on port number 53 to serve requests. Source: Internet