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 6. AWS Identity and Access Management (IAM)
When you’re working in the cloud, one of the first things you need to figure out is who has access to what. Controlling that access—both who gets in and what they’re allowed to do once they’re there—is exactly what AWS Identity and Access Management is built for. IAM lets you define users, groups, roles, and policies to control access across your AWS environment. Whether you’re setting up multifactor authentication, allowing users to log in, or following the principle of least privilege, IAM is a core part of keeping your cloud setup secure.
For the AWS Certified Cloud Practitioner exam, expect IAM to show up. The exam covers basic AWS security concepts, and IAM is a big part of that. You’ll need to understand what IAM does, how policies work, and when to use roles or groups depending on the situation.
Identity
Identity plays a central role in how we keep things organized. Just like you need a driver’s license or passport to prove who you are in the real world, systems need a way to recognize users, applications, and devices. And not just recognize them, but verify they’re allowed to do what they’re trying to do.
When we talk about identity in computing, we’re casting a wide net. It’s not just people logging into email or cloud dashboards. It includes applications talking to each other, devices joining networks, and services requesting access behind the scenes. In every case, identity forms the backbone of security. If you can’t ...
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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.