Video narration
Network protocol and type—what do those mean? A network protocol is a set of rules that lets devices communicate over a network. Think of it like an agreed language: who speaks first, how messages are formatted, and what to do if something is missing. Protocols make sure data can be sent, received, and interpreted correctly, even when it travels as small packets through routers and cables. Now, protocol “types” can mean broad categories. One category handles moving data from one device to another—reliable delivery and addressing. Another category helps applications talk—like web browsing, email, or file sharing. And another category supports the network itself—things like finding devices, assigning addresses, and keeping time. You don’t need to memorize names. The key idea is: network protocols are the rules, and protocol types are groups of rules for different communication jobs.