How to Study for AZ-900: A 3-4 Week Plan

AZ-900 is a wide exam rather than a deep one. The skills measured list three areas and dozens of services, and the questions mostly ask you to match a need to the right service or rule. The hard part is not understanding any one idea. It is keeping close neighbors apart: Azure Policy and resource locks, Service Health and Resource Health, a region pair and an availability zone.

That shape suggests a plan: split your time by the weights, build the vocabulary with spaced recall, then spend the last stretch separating look-alikes. If you have not seen the exam outline yet, what is on the AZ-900 exam covers the format and each skill area first.

Spend time where the points are

The skills measured, as of July 20, 2026, give a range for each area:

The pass mark is 700 on a scale of 1 to 1,000, and Microsoft gives you 45 minutes of exam time. Because the ranges overlap, a sensible split is to give architecture and services the most time, and still give governance and cloud concepts real sessions. Governance is the area people skim, and it is nearly a third of the exam.

The free AZ-900 course follows the same order: 13 units, 53 chapters and 1,172 study cards, each unit building on the last. The last unit is exam day and service matchups.

A 3-4 week plan

This plan assumes a daily session that starts with reviews and then adds new cards. If your exam date is fixed, the study schedule generator can turn the date and the unit list into a day-by-day calendar, and how to build a study schedule before an exam explains the reasoning behind working backward from the date.

If you only have three weeks, merge weeks 3 and 4 by doing two units a day for the lighter units (cost, monitoring) and keeping a full day each for storage, identity and governance, which have the most look-alikes.

Whatever the length, keep the last three or four days for mixed review only. The real exam does not group questions by area, and interleaving vs blocking explains why mixed practice helps you notice which concept a question is really testing.

Recall, not rereading

Almost everything on AZ-900 is retrieval: the three principles of Zero Trust, the Azure Advisor categories, which storage option survives which failure. Reading a summary page feels productive and does little for retrieval. Answer the question from memory first, then check. The testing effect and what spaced repetition actually does cover why quizzing and spacing beat review, and why a unit from week 1 needs to come back in week 3.

The look-alike services to separate

Most lost points on a fundamentals exam come from two plausible answers. For each pair below, write one sentence that separates them from memory.

• Region pair vs availability zone. An availability zone is a separated group of datacenters inside one region and protects against a datacenter-level failure. A region pair is two regions Microsoft associates for geo-replication, and customers cannot choose their own pairs. Deploying into a paired region does not by itself give you failover.
• Zone-redundant vs zonal. With a zone-redundant resource, Microsoft spreads it across zones for you. With a zonal resource, you pick one zone and you are responsible for failover.
• Pricing calculator vs Cost Management. The pricing calculator estimates cost before you deploy. Cost Management analyzes what you are spending after you deploy. A budget alerts you when spending passes a threshold, but it does not stop resources.
• Reservation vs savings plan. A reservation commits to specific resources for one or three years. A savings plan commits to an hourly spend on eligible compute and is more flexible.
• Microsoft Entra ID vs Entra Domain Services. Entra ID is the cloud identity service using modern protocols. Domain Services is a managed domain for legacy apps that need LDAP and Kerberos without running domain controllers yourself.
• Azure Advisor vs Service Health vs Azure Monitor. Advisor recommends what to change to follow best practices. Service Health tells you about Azure incidents and maintenance that affect you. Monitor collects and analyzes telemetry from your resources.
• Azure status vs Service Health vs Resource Health. Azure status is a general view, Service Health is personalized to the services and regions you use, and Resource Health reports on one individual resource.
• RBAC vs Azure Policy vs resource locks. Who can do what, what state resources may be in, and what cannot be deleted or changed. There is a full side-by-side in Azure RBAC vs Policy vs resource locks.
• Purview vs Azure Policy vs Defender for Cloud. Purview governs data, Policy governs resource configuration, and Defender for Cloud measures security posture.

For the storage redundancy options in particular, which are a reliable source of questions, LRS, ZRS, GRS and GZRS explained gives you the full comparison. Lists and tables like these are easiest to learn with the methods in how to memorize a list, a table or a formula sheet.

Where hands-on time helps

Cards cannot run the portal. Even 20 minutes of clicking helps a surprising number of facts stick: open a resource group, look at the Access control (IAM) blade, add a lock, browse a storage account's redundancy setting, open Azure Advisor. You are not trying to become an administrator. You are attaching a screen to a term, so the term is easier to recall.

Encodr's Azure course is unofficial and is not affiliated with or endorsed by Microsoft. The cards are recall practice, and they work best alongside some time in the Azure portal.

Check yourself before booking

Two or three days before the exam, do a cold run through AZ-900 practice questions and note which area your misses cluster in. Then send your last sessions there. If you are choosing between clouds, AWS vs Azure: which cloud cert first compares AZ-900 with the AWS exam, and the AWS Cloud Practitioner study plan uses the same approach.

When you are ready, open the Azure Fundamentals flashcards and start with Unit 1.