What is the full form of UDP?

UDP stands for "User Datagram Protocol".

It’s a communicational protocol that is mainly used in order to establish loss-tolerating connections between various applications on the internet. It bridges this barrier by the means of enabling the better and fast exchange of the data before agreeing to the provided agreement that is provided by the receiving party. This enables the protocol to be involved during the exchange of sensitive information that includes, communication that majorly revolves around voice over the internet protocol (VoIP), domain name system (DNS) lookup, and video or audio playback.

It is actually used in place of Transmission Control Protocol that is (TCP). Though both of them share similar functions it has a few differences as well, for example, UDP enables process-to-process communication, while TCP enables host-to-host communication. The basic and more reliable difference UDP has is that the service does allot a source of guarantee whether the data will be reached to the receipt or no.