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explain like I’m 5: difference between TCP or UDP

TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are two different ways that computers communicate with each other over the internet or a network.

Think of it like sending a package in the mail. TCP is like sending a package with a tracking number and a requirement for the recipient to sign for the package when it is delivered. This ensures that the package gets to its destination and that the sender knows that the recipient received it. UDP is like sending a postcard in the mail. It is faster and simpler, but there is no guarantee that the postcard will arrive at its destination or that the sender will know if it was received.

Similarly, TCP is a reliable and connection-oriented protocol that ensures data is delivered in the order it was sent and that the recipient acknowledges the receipt of the data. It is often used for applications that require a high degree of reliability, such as email, file transfers, and web browsing. On the other hand, UDP is a fast and connectionless protocol that is used for applications that require speed and low latency, such as online gaming, video streaming, and real-time communications.

In summary, TCP and UDP are two different ways that computers communicate with each other over a network. TCP is reliable and connection-oriented, while UDP is fast and connectionless. Each protocol has its own strengths and weaknesses, and is used for different types of applications based on their requirements.