Foundations of Network Security

Is your goal to protect digital information from unauthorized access? Securing the network is the first and most critical line of defense in any cybersecurity strategy. This course provides a practical introduction to the principles of network and communications security. You will read through clear explanations of how networks function, where their vulnerabilities lie, and how to apply fundamental security controls to protect data as it moves across local networks and the internet. What you'll learn: - Understand the core functions of the OSI and TCP/IP network models. - Identify common network protocols and their associated security risks. - Apply fundamental cryptographic principles to secure data in transit. - Recognize common network-based attacks, such as sniffing, spoofing, and denial-of-service. - Explore the core tenets of a modern Zero-Trust security architecture. - Learn the foundational concepts of securing networks in cloud environments. You will begin by learning essential networking terminology and architecture before progressing to practical security mechanisms and defensive strategies. Each topic is explained with clear, text-based examples and exercises. This course is designed for absolute beginners. No prior experience in networking or cybersecurity is required to get started. Begin your journey into cybersecurity by mastering the fundamentals of network protection today.