January 2026
Intermediate to advanced
254 pages
6h 48m
English
Content preview from AWS Certified Cloud Practitioner (CLF-C02) Study Guide
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Chapter 4. Fundamentals of AWS
Cloud computing has fundamentally transformed the way organizations manage IT resources. Instead of investing heavily in physical infrastructure, businesses are now turning to cloud platforms like AWS to gain flexibility, reduce costs, and accelerate innovation.
This chapter provides a comprehensive overview of the fundamentals of AWS, starting with a comparison between traditional on-premises setups and cloud-based environments. We’ll then go on to look at the key financial concepts like the total cost of ownership (TCO), examine licensing strategies, and dive into cloud native benefits like rightsizing, automation, and scalability. The chapter also introduces important frameworks like the AWS Well-Architected Framework and the AWS Cloud Adoption Framework. They provide practical guidance for designing secure, resilient, and cost-effective cloud solutions.
Cloud Economics
One of the cloud’s most powerful advantages isn’t technical at all—it’s economic. Cloud economics has reshaped how organizations think about IT spending, shifting the conversation from servers and data centers to flexibility, speed, and financial agility. Understanding how cloud costs work, and how they differ from traditional infrastructure investments, is key to making smart decisions in the cloud.
In the next few sections, we’ll unpack some of the main benefits and features that drive cloud economics.
On-Premises Versus Cloud Computing Environments
When you’re weighing IT ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.