AZ-900 vs AZ-104: Which Azure Certification Should You Take First?

Two of Microsoft's most popular certifications both have "Azure" in the name — but they target completely different people. Here is an honest breakdown of AZ-900 vs AZ-104 so you can pick the right starting point.

The Short Answer

AZ-900 (Microsoft Certified: Azure Fundamentals) is the beginner exam. It tests whether you understand cloud concepts and can talk intelligently about Azure services — no hands-on experience required. AZ-104 (Microsoft Certified: Azure Administrator Associate) is the working admin exam. It tests whether you can actually deploy, configure, and troubleshoot Azure resources, and it assumes real experience in the portal and command line.

For most people, the sensible path is AZ-900 first, then AZ-104. AZ-900 builds the vocabulary and mental model that makes AZ-104's technical depth far easier to absorb. That said, AZ-900 is not a formal prerequisite — if you already administer Azure daily, you can go straight to AZ-104.

Side-by-Side Comparison

What Each Exam Actually Covers

AZ-900: the vocabulary exam

AZ-900 is organized around three areas: cloud concepts (roughly a quarter to a third of the exam), Azure architecture and services (the biggest chunk), and Azure management and governance (about a third). Expect questions like: what is the difference between IaaS, PaaS, and SaaS? Which service would you use for serverless code — Azure Functions or a virtual machine? What does Microsoft's shared responsibility model actually divide between you and Microsoft?

Notice what is missing: there are no questions asking you to write ARM templates, debug a virtual network, or restore a backup. If you can explain cloud ideas clearly and match Azure services to scenarios, you can pass AZ-900.

AZ-104: the doing exam

AZ-104 covers identity and governance, storage, compute, virtual networking, and monitoring — and it goes deep on each. You will face scenario questions like: a virtual machine cannot reach the internet after a network security group change — what do you check first? Which storage redundancy option protects against a regional outage? How do you grant a user just enough RBAC permission to restart VMs and nothing else?

This is why experience matters. AZ-104 rewards people who have clicked through these blades, made these mistakes, and fixed them.

Difficulty: How They Really Compare

AZ-900 is one of the most approachable IT certifications in existence. A focused beginner can prepare in two to four weeks of evening study. The questions are mostly definition- and scenario-matching style, and the wording is generally straightforward.

AZ-104 is a different animal. Candidates commonly report six to twelve weeks of serious study on top of hands-on practice. The scenarios are longer, several answers can look plausible, and the exam punishes memorization without understanding. Treat anyone who tells you it is "just a harder AZ-900" with suspicion — it tests a different skill entirely.

Career Value: Which One Gets You Hired?

Be honest with yourself about what each cert signals. AZ-900 tells an employer you are cloud-literate — valuable for sales engineers, project managers, support staff, and anyone pivoting into tech. It rarely lands anyone an engineering job on its own, but it is a credible first line on a resume and a genuine confidence builder.

AZ-104 tells an employer you can do the job of an Azure administrator. It maps directly to real job postings, pairs well with networking knowledge, and is often the cert that moves a helpdesk technician into a cloud role. If your goal is a technical cloud position, AZ-104 (plus the skills behind it) is the one that changes your salary.

The strongest combination is both: AZ-900 proves breadth, AZ-104 proves depth, and together they tell a coherent story of someone who started with fundamentals and kept going.

Who Should Take Which First?

• Complete beginner / career changer: AZ-900 first, no question. Learn the language before the engineering.
• IT support / helpdesk aiming for cloud: AZ-900 first (fast win), then AZ-104 as the main project.
• Non-technical (sales, management, finance): AZ-900 alone is the right scope. AZ-104 would be overkill.
• Already working in Azure: skip AZ-900 and go straight to AZ-104 — or take AZ-900 only if your employer wants the fundamentals badge.
• Coming from AWS or GCP: AZ-900 is a quick mapping exercise (a week or two), then AZ-104 for the Azure-specific depth.

Frequently Asked Questions

Is AZ-900 a prerequisite for AZ-104?

No. Microsoft does not require AZ-900 before AZ-104. It is a recommended learning path, not a formal prerequisite — experienced admins routinely skip straight to AZ-104.

Can I pass AZ-900 with no IT background?

Yes. AZ-900 was designed for exactly that audience, including people in sales, marketing, and management. The exam tests concepts and service matching rather than technical implementation, so disciplined study of the objectives is enough.

How long should I study for each exam?

Most beginners need two to four weeks for AZ-900 with consistent daily study. AZ-104 typically takes six to twelve weeks plus hands-on lab time. These are averages — prior experience compresses both significantly.

Do these certifications expire?

Fundamentals certifications like AZ-900 do not expire. Role-based certifications like AZ-104 are valid for one year and can be renewed for free through Microsoft's online renewal assessment.