AZ-900 has three skill areas. This is a plain-English summary with approximate weightings; the official Microsoft Learn study guide is authoritative.
| # | Skill area | Approx. weight |
|---|---|---|
| 1 | Describe cloud concepts | 25–30% |
| 2 | Describe Azure architecture and services | 35–40% |
| 3 | Describe Azure management and governance | 30–35% |
1 — Cloud concepts
Benefits of the cloud, the service models (IaaS, PaaS, SaaS), deployment models (public, private, hybrid), and the shared responsibility model.
2 — Azure architecture and services
Regions, availability zones and resource groups, plus the core compute, storage, networking and database services.
3 — Management and governance
Cost management tools, service-level agreements, and governance with Microsoft Entra ID, RBAC, Azure Policy and resource locks.