Foundations of Computer Networking

Ever wondered how a simple click sends information across the globe in an instant? This course demystifies the essential concepts behind computer networks, providing a clear path to understanding the technology that connects our world. You will build a solid vocabulary and conceptual framework for how data travels, how devices communicate, and how the internet is structured. By the end of the course, you'll be able to confidently explain the key components and processes that make digital communication possible. What you'll learn: - Understand the core differences between Local Area Networks (LANs), Wide Area Networks (WANs), and the internet. - Learn the functions of each layer in the foundational OSI and TCP/IP networking models. - Master the roles of essential protocols like TCP, UDP, IP, DHCP, and DNS. - Explore the purpose of network hardware, including routers, switches, and wireless access points. - Compare IPv4 and IPv6 addressing and understand the need for the transition. - Grasp fundamental network security concepts, including the roles of firewalls and VPNs. - Practice using basic command-line tools like `ping` and `traceroute` to test network connectivity. The course starts with basic terminology and the layered models of networking before progressing to the specific protocols and hardware that bring networks to life. You'll finish by learning practical ways to diagnose common network issues through written exercises. This course is designed for absolute beginners. No prior experience in networking or information technology is required to get started. Begin learning the fundamentals of data networks today.