AZ-900 Study Guide: Everything You Need to Pass Azure Fundamentals
AZ-900 is the easiest serious cloud certification on the market, but easy is not the same as effortless. Roughly one in four first-time test-takers still fails. This guide tells you exactly which domains to focus on, what to skip, and the study sequence that gets most people to pass in two to three weeks.
What AZ-900 actually covers
AZ-900 has four domains, weighted unevenly. Most failures happen because candidates study evenly instead of focusing where the questions actually are.
- Cloud concepts (25–30%) — IaaS vs PaaS vs SaaS, public/private/hybrid, scalability, elasticity, total cost of ownership.
- Azure architecture and services (35–40%) — core services, regions, availability zones, resource groups, the most common compute, storage, and networking products.
- Azure management and governance (30–35%) — pricing, support plans, service-level agreements, cost management, Azure Policy, role-based access control.
- (The fourth domain on Azure security and compliance was folded into the others in the latest exam update.)
What to study and what to skip
AZ-900 is wide but shallow. You need recognition-level knowledge of dozens of services, not deep expertise in any of them. Spend your time on naming, purpose, and pricing tier — not on configuration.
- Memorize the difference between Azure regions, availability zones, and region pairs.
- Memorize what each compute service is for (Virtual Machines, App Service, Container Instances, Container Apps, AKS, Functions) — one sentence each.
- Memorize the Azure pricing calculator vs the Total Cost of Ownership calculator vs Cost Management vs Azure Advisor.
- Skip deep configuration of any single service. AZ-900 will not ask you to write ARM templates or PowerShell.
Recommended study resources
You do not need a paid course to pass AZ-900. Microsoft Learn has a free, official, exam-aligned learning path. Spend ten to fifteen hours on it, then move to practice questions.
Practice tests are non-negotiable
AZ-900 has a specific phrasing style — short scenarios, multiple-choice or single-answer, occasionally drag-and-drop. Reading official docs alone does not prepare you for the wording. Plan to take at least three full-length practice exams before the real one. If you score 80% or higher on two consecutive practice exams, you are ready.
Common mistakes that fail people
These are the patterns we see most often in failed first attempts.
- Studying every service in equal depth instead of focusing on the four domains by weight.
- Memorizing service definitions without practicing how Microsoft phrases the questions.
- Skipping the governance domain because it sounds boring — it is roughly one-third of the exam.
- Trusting unofficial dump sites with outdated questions from old AZ-900 versions.
Two-week study plan
If you have a normal job and a few hours per evening, this plan gets most people across the line.
- Days 1–4 — Microsoft Learn cloud-concepts and core-services modules.
- Days 5–7 — Microsoft Learn governance, pricing, and SLA modules.
- Days 8–10 — Practice exam #1, review every wrong answer in depth.
- Days 11–13 — Practice exam #2 and #3. Revisit the weakest domain.
- Day 14 — Light review of summary notes only. Sleep. Take the real exam.
Frequently asked questions
How hard is the AZ-900 exam?
AZ-900 is the easiest of the major cloud-fundamentals exams, but the failure rate for first-time test-takers is still around 25%. Two to three weeks of focused study is enough for most people.
How much does AZ-900 cost?
Microsoft charges $99 USD for AZ-900. Cloudify's equivalent Azure Fundamentals exam is significantly cheaper and delivered fully online.
What is the AZ-900 passing score?
Microsoft uses a scaled score; the pass mark is 700 out of 1000. There is no fixed percentage of correct answers required, because question difficulty is weighted.
How long is the AZ-900 exam?
The exam is 60 minutes long with roughly 40 questions. Most candidates finish in 35 to 45 minutes.