Computer Networking and Network Security Fundamentals

Every digital connection relies on a secure network infrastructure to function safely. Understanding how data travels and how to protect it from modern threats is an essential skill for anyone starting a career in technology or cybersecurity. This text-based course guides you from absolute beginner to confident practitioner in network fundamentals. You will learn how networks are structured, how devices communicate, and how to implement modern security measures to safeguard data. What you'll learn: Understand core networking concepts, protocols, and the OSI model layers; Configure basic network devices and manage IP addressing schemes; Identify common network vulnerabilities and modern security threats; Apply fundamental security controls, firewalls, and encryption methods; Explore modern zero-trust security concepts and secure remote access. The course begins with foundational definitions and network architectures before moving into practical configuration concepts and defensive security strategies. You will progress through clear written explanations and practical scenarios designed to build your skills step-by-step. This course is designed for beginners who want to learn networking and security from scratch, with no prior technical experience required. Start reading today to build your foundational knowledge in network security.