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Delphi Cookbook - Second Edition by Daniele Teti

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Controlling remote application using UDP

What's UDP? User Datagram Protocol, or UDP, is a connectionless protocol used by everyone every day, but it seems that not too many people know it. However, it can be really useful to solve particular network problems. Like TCP, UDP works at transport layer TCP/IP model but they have very different usage. Compared to TCP, UDP is a simpler message-based connectionless protocol. Connectionless protocols do not set up a dedicated end-to-end connection, instead communication is achieved by transmitting information in one direction from source to destination without verifying the readiness or state of the receiver. However, one primary benefit of UDP over TCP is the application to voice over internet protocol ...

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