August 2025
Intermediate to advanced
306 pages
8h 55m
English
Content preview from Certificate of Cloud Security Knowledge (CCSK v5) Study Guide
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Chapter 1. Cloud Computing Concepts and Architectures
Well begun is half done.
Aristotle
This chapter serves to set you on a solid footing for what is about to come in the rest of this book. To pass the Certificate of Cloud Security Knowledge (CCSK) exam, you need to fundamentally understand the similarities and differences that cloud computing has with what I call traditional IT.
Traditional IT is what companies have been doing for decades: physical datacenters, physical servers, physical networking, and physical drives. In contrast, everything in the cloud is virtual. Well, there are, of course, the physical components just mentioned, but those are procured (sometimes even created) and managed by the provider in a datacenter it runs.
To the cloud service customer (CSC), everything in the cloud is virtual. Some people may argue that the cloud is just running your servers in someone else’s datacenter and that traditional IT and cloud computing aren’t that different. Some people also say the world is flat. Rest assured, it is a very different world once you start looking into some of the finer points, especially when it comes to security.
Cloud computing can offer organizations significant agility, resiliency, security, and economic benefits if done properly. However, to realize these benefits, it is essential to properly understand and adopt cloud models, ensuring that cloud architectures and practices align with the features and capabilities of cloud platforms.
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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.