Ethernet is the backbone of modern networking, powering everything from home Wi-Fi routers to massive global data centers. Whether you are a student preparing for a tech certification or a professional looking to train your team, having a clear, visual way to explain these concepts is essential.

These connect your local Ethernet network to the broader internet. How Ethernet Works: The Fundamentals

Use diagrams to illustrate star and bus topologies.

Ready to teach or learn? We’ve put together a comprehensive slide deck covering: History and Standards (IEEE 802.3) Physical Layer Media (Copper vs. Fiber) Frame Formats and MAC Addressing Modern Switching vs. Legacy Hubs

The most common are Category 5e (Cat5e), Cat6, and Cat6a. These use RJ45 connectors to link devices.