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I know the difference between the two on a technical level.
But in real life, can anyone provide examples (the more the better) of applications (uses) of TCP and UDP to demonstrate the difference?
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TCP is a connection-oriented protocol, whereas UDP is a connectionless protocol. A key difference between TCP and UDP is speed, as TCP is comparatively slower than UDP. Overall, UDP is a much faster, simpler, and efficient protocol, however, retransmission of lost data packets is only possible with TCP.
As a result, high-level protocols that need to transmit data all use TCP Protocol. Examples include peer-to-peer sharing methods like File Transfer Protocol (FTP), Secure Shell (SSH), and Telnet.
TCP is used to control segment size, rate of data exchange, flow control and network congestion. TCP is preferred where error correction facilities are required at network interface level. UDP is largely used by time sensitive applications as well as by servers that answer small queries from huge number of clients.
Examples include Voice over IP (VoIP), online games, and media streaming. Speed – UDP's speed makes it useful for query-response protocols such as DNS, in which data packets are small and transactional.
UDP: Anything where you don't care too much if you get all data always
TCP: Almost anything where you have to get all transmitted data
EDIT: I'm not going to bother explaining the differences, since you state that you already know and every other answer explains it anyway :)
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