Computer Networking Fundamentals: TCP/IP, DNS, DHCP, and NAT

Modern digital communication relies entirely on computer networks, yet the underlying mechanics often seem intimidating. This text-based course breaks down network protocols into clear, accessible concepts, helping you understand how devices communicate and process data. You will gain a strong baseline in networking principles, transforming abstract technical terms into a practical mental model of data flow. What you'll learn: - Learn core terminology, the OSI reference model, and the TCP/IP protocol suite - Understand how DNS translates human-readable web addresses into IP addresses - Explore how DHCP dynamically configures devices on a local network - Analyze how NAT allows multiple private devices to share a single public IP address - Trace packet delivery through subnets, routers, and switches - Grasp fundamental network security principles, including modern zero-trust basics. You will begin with primary concepts and basic terminology before moving step-by-step through protocol operations and practical network scenarios. This course is created for beginners with no prior networking experience. Begin reading to build your practical understanding of computer networks today.