Each datagram is a self-contained unit and contains no information about the data fragments that come before or after. So, instead of processing a backlog of delayed packets, the server can process requests in a completely linear fashion. This process is supported by the size of the packets involved in UDP. Consider how TCP packets have built-in error checking and sequential numbering: if you remove all of these unnecessary extras, UDP datagrams become much smaller. These optimized data fragments can then be processed at lightning speed.
As a result, UDP is used in services that require near real-time processing. Think about streaming video and computer games: they may require a lot of UDP datagrams, but their speed is essential for a good user iran telegram data experience. And if a packet is dropped or lost, the real consequences may be the absence of a pixel that lasts for the duration of a frame. By associating a domain name with a recognizable web address, Domain Name System (DNS) queries also use UDP. These queries are tiny and consist of a single request-response pair, but they must be fast, making UDP a natural choice.
Peculiarity UDP (User Datagram Protocol) TCP (Transmission Control Protocol)
Connection Connectionless: No connection is established before sending data. Connection-oriented, a three-way handshake is established before data is transmitted.
Reliability Does not guarantee delivery, ordering or error checking. The architecture of the packages ensures delivery in the correct order.
Speed Fast. Slower than UDP due to extensive error checking mechanisms.