The Networking Fundamentals course provides a comprehensive introduction to how computer networks operate. Starting with basic network devices, learners explore hosts, hubs, bridges, switches, and routers, understanding their roles in connecting devices and forwarding data. The course then dives into the OSI model, giving a practical perspective on how each layer—from physical to application—works to facilitate communication.

Students learn the inner workings of hosts, switches, and routers, including packet forwarding, router hierarchies, and route summarization. Key network protocols are explained, including ARP, FTP, SMTP, HTTP, HTTPS, SSL/TLS, DNS, and DHCP, providing the foundation to understand network communication and troubleshooting.

The course also covers how data moves through the Internet, practical demonstrations using tools like Telnet to distinguish HTTP vs. HTML, and the functions of Session, Presentation, and Application layers in real-world networking. By the end of the course, learners will have a solid grasp of networking fundamentals, preparing them for network administration, troubleshooting, and advanced networking certifications.