What is Ethernet and Why Should I Care?

Whether you are preparing for a networking certification, working in an enterprise or service provider network, or setting up a small network at home, Ethernet is one of the most important technologies you need to understand. As a core networking standard used across almost every modern network, Ethernet forms the foundation for how devices communicate within local area networks. In this course, instructor Keith Bogart provides a detailed and easy-to-follow explanation of Ethernet, starting from its early development and continuing through its modern-day implementations. You will learn how Ethernet has evolved over time, why it remains widely used, and how it supports communication across different types of network environments. The course covers important Ethernet concepts such as the structure and components of Ethernet frames, how data is prepared for transmission, and how devices share access to the network using the CSMA/CD process. You will also explore Ethernet cabling standards, common frame size issues such as Runts and Giants, and the use of Jumbo Frames in high-performance network environments. This training provides essential knowledge for anyone who works with, studies, designs, or supports computer networks. It is especially valuable for learners preparing for networking certifications and professionals who want a stronger understanding of the technology that continues to support modern network communication.