Complete guide to passing the AZ-900 in 2026 from scratch

The AZ-900 is the entry point to the Microsoft Azure certification ecosystem. It's accessible to beginners, but that doesn't mean you can show up unprepared and expect to pass. You need a plan.

This guide takes you from zero to ready for the exam, with a concrete study plan and the resources that actually work.

Who is the AZ-900 for?

The AZ-900 requires no prior technical experience. It's designed for:

• ▸IT professionals who want to validate their cloud knowledge
• ▸People transitioning into a tech career
• ▸Sales, marketing, or management profiles who work with Azure technical teams
• ▸Students who want to enter the cloud world with an official credential

If you already have experience as a sysadmin, developer, or DevOps, the AZ-900 will take you less time — but it's still worth doing to have the foundational certification before the more advanced ones (AZ-104, AZ-305, etc.). Plus, the AZ-900 doesn't expire: you pass it once and it stays on your profile.

What the exam covers

The AZ-900 assesses three main areas:

1. Cloud concepts (25–30%): what the cloud is, service models (IaaS, PaaS, SaaS), deployment models (public, private, hybrid), and the main benefits like scalability and high availability.

2. Azure services (35–40%): Azure's most important services in compute, storage, networking, and databases. You don't need to know how to use them technically — you need to understand what each one is for and when it's used.

3. Management and governance (30–35%): management tools, security, regulatory compliance, cost management, and monitoring.

4-week study plan

This plan is designed for someone with no prior experience who can dedicate 1–1.5 hours a day.

Week 1 — Cloud fundamentals

• ▸Study Module 1 on Microsoft Learn: cloud concepts
• ▸Learn the IaaS, PaaS, and SaaS models with real examples
• ▸Understand the difference between public, private, and hybrid cloud
• ▸Take the review quiz at the end of the module

Week 2 — Azure's main services

• ▸Study Module 2: Azure architecture and services
• ▸Create a free Azure account and explore the portal (it costs nothing)
• ▸Learn what these are for: Virtual Machines, App Service, Azure Functions, Storage Accounts, Virtual Networks, Azure SQL
• ▸Start doing practice questions on this domain

Week 3 — Management, security, and costs

• ▸Study Module 3: management and governance
• ▸Focus on: Azure Policy, Role-Based Access Control (RBAC), Azure Cost Management, Azure Monitor
• ▸If you come across material about Azure Blueprints, skip it: the service was retired in July 2026
• ▸Learn how to calculate composite SLAs (a frequent exam question)
• ▸Keep going with practice questions

Week 4 — Review and practice exams

• ▸Review the topics where you made the most mistakes in the previous weeks
• ▸Take at least 3 full practice exams under real exam conditions (45 minutes, no interruptions)
• ▸Aim for a score of 80%+ on the practice exams before booking the real exam
• ▸If you reach Friday with consistent scores above 75%, you're ready

💡 Don't memorize answers from a question bank. Understand the concept behind each answer. The real exam has questions worded differently from any practice exam — what matters is understanding, not memorizing.

Free resources that work

Microsoft Learn (essential)

Microsoft's official platform has the entire AZ-900 syllabus organized into modules with interactive exercises. It's free. Start here: learn.microsoft.com

Look for the learning path: "Microsoft Azure Fundamentals: Describe cloud concepts".

Interactive labs or a free Azure account

Exploring the Azure portal helps you understand the services concretely, not just in theory. You can practice with no risk of charges in the AZ-900 interactive labs, or create a free Azure account, which includes starter credit for the first 30 days (check the current terms when you sign up).

Microsoft's exam sandbox

Before the exam, go through the official exam sandbox to get to know the interface and the question types. That way you won't waste time on exam day figuring out how to answer.

YouTube

There are good-quality AZ-900 review videos. Make sure they're recent: Azure services and names change (for example, Azure AD is now Microsoft Entra ID).

The topics where people fail the most

Based on real experiences from candidates, these are the points that cause the most mistakes:

Composite SLA calculation: if you have two services with a 99.9% SLA each, the composite SLA isn't 99.9% — it's 99.9% × 99.9% = 99.8%. This type of question shows up on almost every exam.

The difference between CapEx and OpEx: CapEx (capital expenditure) is the upfront investment in your own infrastructure. OpEx (operational expenditure) is the operating cost in the cloud. The cloud turns CapEx into OpEx — that's one of its key advantages.

When to use each storage service: Blob Storage (unstructured files), Azure Files (network file shares), Disk Storage (VM disks). "Which service would you use in this scenario" questions are very frequent.

Azure Resource Manager vs the Azure Portal: the Portal is the graphical interface; ARM is the underlying system that manages all resources. Both can be used for the same things, but in different ways.

Mistakes to avoid

• ▸Booking the exam before you're ready: if you cancel or reschedule outside the allowed window, you lose the money, and every retake is paid in full. Book it only when your practice exams show consistent scores above 75%.
• ▸Studying only by reading: the AZ-900 requires recognizing concepts under time pressure. You only develop that skill by practicing questions in the real format.
• ▸Ignoring the governance and cost domain: many people study Azure services in depth and neglect pricing, SLAs, and management tools. That domain weighs 30–35%.

When are you ready to book the exam?

The most reliable signal is this: if you take three full practice exams of 40–60 questions and consistently score between 75–80% or more, you're ready. A bad day can knock 5–8 points off your score, so that margin protects you.

Don't wait until you reach 95%. The goal is to pass, not to be perfect.

Measure your level before booking the exam At Brains4Cloud we have AZ-900 practice exams with the same format and difficulty as the real exam, plus the AZ-900 guide and the Deep Dive. Create your free account to see which domains you're strong in and where you need to reinforce. Only book the exam when your practice exams show consistent scores.