What Are The Differences Between TCP, UDP, And QUIC, And When Should I Use Each?

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What Are The Differences Between TCP, UDP, And QUIC, And When Should I Use Each?

TCP, UDP, and QUIC are network transport protocols that differ in reliability and speed: TCP is reliable and connection-oriented, UDP is fast but connectionless (no delivery guarantees), and QUIC runs on UDP to offer fast, secure connections with TCP-like reliability.

Below, we break down what each protocol is, how they differ, and scenarios for using each.

Transmission Control Protocol (TCP)

TCP (Transmission Control Protocol) is a widely-used transport layer protocol known for its reliability and ordered delivery.

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