Networks mean communication, a non-stop exchange of different data types. Following this idea, networks strongly need solutions for transferring data from one place (source) to another (destination).
Those solutions exist, and they are called communication protocols. UDP is one of them!
What is UDP?
The user datagram protocol or UDP is a communication protocol created in 1980 for the exchange of data between networks and machines. It’s a high-speed solution, and this feature boosted its popularity. It became ideal for DNS lookups, real-time systems, or video transmissions. This David P. Reed’s contribution really improved networking, and its utility keeps being important nowadays.
Detailed information about UDP