Welcome to Protocols and Models!
By now, you know the basic components of a simple network and how to configure them. But once everything’s connected, how do you know it’ll all actually work together? That’s where protocols come in — agreed-upon rules created by standards organizations that keep devices communicating correctly.
Of course, you can’t hold up a protocol and inspect it, so how do you really understand why a rule exists and what it’s meant to do? That’s where models come in — they give you a way to visualize these rules and see exactly where they fit in your network.
This module gives you an overview of network protocols and models, setting you up with a much deeper understanding of how networks actually work!
