How do UDP, TCP, and HTTP differ?

UDP and TCP are transport layer protocols, which help move data between devices. HTTP, and the more advanced HTTPS, are application layer protocols that define how web browsers and servers exchange information.

How do I know if I’m using TCP or UDP?

You can make an educated guess based on what kind of application you’re using, but if you’re unsure, you can use a protocol analyzer tool such as Wireshark to see which protocol is in use.

Which layer does TCP and UDP work on?

TCP and UDP work on the transport layer of the TCP/IP network model, which is considered Layer 4 in the OSI model.

When to use UDP vs. TCP?

In general, applications that are fault tolerant and require real-time communication should use UDP, while applications that need guarantees about data delivery and reliable packet ordering should use TCP.

TCP vs. UDP: Key differences and which one is better

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