Cloud Network Architecture & Security: Fundamentals & Beyond

Cloud is no longer "someone else's computer" – it is the new backbone of modern networks and security. Cloud Network Architecture & Security is a practical, vendor-neutral guide that helps networking and security professionals confidently design, build, and protect cloud environments. Starting from fundamentals and moving to hands-on labs and real-world case studies, this book bridges the gap between traditional on-premises thinking and cloud-first architectures. You'll learn how virtual networks, subnets, route tables, and security groups really work; how to secure identities and data; and how to compare on-prem, hybrid, and multi-cloud designs. Inside, you'll discover how to: Understand IaaS, PaaS, and SaaS, and choose the right deployment models for your workloads. Design cloud network architectures with VNets/VPCs, subnets, load balancers, DNS, and traffic management. Apply core cloud security principles: IAM, network security controls, data protection, and compliance. Implement zero-trust concepts in multi-cloud environments using strong identity and least-privilege access. Use hands-on labs (console, CLI, and infrastructure-as-code) to build and secure cloud networking step by step. Compare on-premises vs. cloud architectures, plan migrations, and avoid common misconfiguration pitfalls. Explore advanced topics such as cloud-native security tools, SASE/ZTNA, AI-driven security operations, and emerging regulations. You'll also find: Part-by-part exercises with answer keys to reinforce learning. Labs and case studies focused on real adoption, cost control, and security incidents. An IAM cheat sheet you can reuse in day-to-day cloud security design. Whether you are a network engineer, security analyst, cloud architect, or an IT professional transitioning to the cloud, this book gives you the practical foundation and patterns you need to design secure, scalable cloud network architectures with confidence.