Fundamentals Of Azure: Microsoft Azure Essentials -

Enforces rules and effects over your resources.

Microsoft Azure is a massive ecosystem of cloud services designed to help you build, manage, and deploy applications on a global scale.

Virtual Machines (VMs), Containers, and Serverless functions. Microsoft Azure Essentials - Fundamentals of Azure

Manages identities and access.

Azure breaks its tools down into several "buckets" depending on your needs: Enforces rules and effects over your resources

Before diving into services, you need to understand how Azure is organized:

Virtual Networks (VNet), VPN Gateways, and Content Delivery Networks (CDN). Microsoft Azure Essentials - Fundamentals of Azure

Geographic areas containing at least one data center.