Introduction to Computer Networks and Modern Networking Basics

In today's digital world, every application we use relies on a network to function. Understanding how data travels from one device to another is an essential skill for anyone pursuing a career in IT, software development, or system administration. This course guides you from absolute beginner to a confident grasp of networking essentials. You will start with foundational terminology, network topologies, and the core layers of the OSI and TCP/IP models. From there, you will learn how routers and switches direct traffic, how IP addressing and subnetting work, and how modern networks secure their data. What you'll learn: Understand core networking components, devices, and topologies; Master the OSI and TCP/IP reference models and how data is encapsulated; Learn the basics of IPv4 and IPv6 addressing, including simple subnetting; Explore common network protocols like HTTP, DNS, DHCP, and SSH; Practice identifying security threats and applying modern network protection principles. This course begins with basic terminology and conceptual frameworks, then moves into practical addressing scenarios and modern security workflows. It is designed specifically for beginners with no prior networking experience. Start reading today to build a solid foundation in computer networks.