My 10-Week AZ-204 Study Plan That Actually Worked

I'll be honest — the AZ-204 scared me. Not because the Azure services are hard to understand (they're not, mostly), but because this exam actually expects you to code. Like, real code. Not pseudocode, not "which of these describes a function" — actual C# and Python snippets where you need to spot the bug or fill in the blank.

So after three weeks of aimless Microsoft Learn reading that left me no closer to ready, I sat down and built an actual plan. Ten weeks later, I passed with 812. Here's exactly what I did.

Why AZ-204 Is Different From Other Azure Exams

If you've taken AZ-104 or AZ-900, forget most of what you know about how Azure exams work. AZ-204 is a developer exam, and it shows.

Here's what makes it unique:

• Code-heavy questions: You'll read C#, Python, or JavaScript. If you can't parse a function signature, you're in trouble.
• SDK knowledge matters: Not just "what does Blob Storage do" but "which method do you call on BlobContainerClient to upload asynchronously."
• Scenario-based: Most questions give you a business requirement and ask how to implement it.
• Broad coverage: Azure Functions, App Service, Cosmos DB, Event Grid, API Management, Key Vault, CDN, Redis Cache… it's a lot.

The passing score is 700/1000. You get 120 minutes for roughly 40-60 questions. Some questions are case studies that you can't go back to once answered.

Before You Start: Prerequisites

Be real with yourself about these. If you're missing any, add 2-4 weeks to the plan.

Must-Have Skills

• Programming proficiency in C#, Python, or JavaScript — you should be comfortable reading code, not learning syntax
• Basic Azure familiarity — if you don't know what a resource group is, start with AZ-900 first
• REST API concepts — HTTP methods, status codes, authentication headers
• JSON — you'll see a LOT of JSON in this exam

Nice-to-Have

• Experience deploying to Azure (even personal projects)
• Docker basics (containerization comes up a lot)
• Git workflow familiarity

The 10-Week Study Plan

I studied about 12-15 hours per week. If you can do more, compress the timeline. If less, stretch it. The order matters though — later topics build on earlier ones.

Weeks 1-2: Azure App Service & Azure Functions

This is the biggest domain (25-30%) and the most intuitive for developers. Start here because the wins feel good and build momentum.

• App Service Plans: Understand tiers (Free, Shared, Basic, Standard, Premium, Isolated) and what you get at each level
• Deployment slots: This one comes up constantly. Know auto-swap, slot settings, and traffic routing
• Azure Functions: Triggers, bindings (input and output), Durable Functions patterns. The orchestrator determinism rule trips everyone up
• Container instances & Container Apps: When to use ACI vs Container Apps vs AKS

Spend at least 4 hours in the Azure portal actually deploying things. Create a Function App, add a blob trigger, mess with deployment slots. The muscle memory helps.

Weeks 3-4: Azure Storage & Cosmos DB

Storage is the second pillar. Cosmos DB alone could be its own exam.

• Blob Storage: Tiers (Hot, Cool, Cold, Archive), lifecycle policies, lease operations, immutability policies
• Cosmos DB: Consistency levels (strong, bounded staleness, session, consistent prefix, eventual) — memorize these cold
• Partitioning strategy: Choosing partition keys is a favorite exam topic. Bad choices = bad performance = wrong answer
• Change feed: How it works, how to process it with Azure Functions

The Cosmos DB consistency levels question appears in some form on almost every AZ-204 exam I've heard about. Don't just memorize them — understand the trade-offs between latency, throughput, and data freshness.

Weeks 5-6: Azure Security Implementation

This is where it got hard for me. Security is 20-25% of the exam and the questions are tricky.

• Microsoft Entra ID (Azure AD): App registrations, service principals, managed identities (system-assigned vs user-assigned)
• Key Vault: Storing secrets, certificates, and keys. Access policies vs RBAC. Soft-delete and purge protection
• Managed Identities: When to use which type. How they work with Key Vault and other services
• Microsoft Graph: Querying user data, permissions (delegated vs application)

My tip: managed identities are Microsoft's preferred answer for almost any "how do you authenticate" question. If it's an option, it's probably correct.

Weeks 7-8: Monitoring, Caching, and Messaging

These topics feel scattered, but they're all about making apps reliable and fast.

• Application Insights: Instrumentation, custom metrics, availability tests, KQL queries
• Azure Cache for Redis: Caching patterns (cache-aside, write-through), data expiration, connection pooling
• Azure CDN: Caching rules, purge operations, custom domains
• Event Grid vs Service Bus vs Event Hub: Know when to use each. This distinction comes up on every exam

Week 9: API Management & Integration

Shorter section but don't skip it. APIM questions are straightforward if you've practiced.

• APIM policies: Inbound, backend, outbound, on-error. Rate limiting, JWT validation, CORS, caching
• Products and subscriptions: How APIs are organized and consumed
• Logic Apps: Basic connector knowledge, workflow patterns

Week 10: Review, Practice Tests, and Weak Spots

This is the most important week. Don't learn new material. Instead:

1. Take 3-4 full-length practice tests on ExamCert's AZ-204 practice exam
2. Review every wrong answer — not just what's correct, but WHY the wrong options are wrong
3. Revisit your weakest domain (mine was Cosmos DB consistency models)
4. Do one final hands-on lab session deploying a complete app with Functions, Blob Storage, Key Vault, and App Insights

Resources That Actually Helped

Primary Study Materials

• Microsoft Learn AZ-204 Learning Path: Free and comprehensive. The sandbox labs are underrated
• Practice tests: ExamCert AZ-204 practice questions were closest to actual exam difficulty
• Azure Documentation: Yes, it's dense. But the quickstart tutorials are genuinely useful

What I'd Skip

• Brain dumps: They're outdated before you find them. Microsoft rotates questions constantly
• Generic "cloud certification" courses: AZ-204 is too specific for general content
• Excessive note-taking: Labs > notes for this exam. Your hands need to know the Azure portal

5 Mistakes I Almost Made

1. Ignoring Durable Functions. I almost skipped this because it felt niche. It's not. The orchestrator patterns (function chaining, fan-out/fan-in, async HTTP APIs, monitor) showed up multiple times.

2. Memorizing without understanding. Knowing that "session consistency" exists isn't enough. You need to know when a shopping cart application should use it vs bounded staleness.

3. Skipping hands-on labs. Reading about deployment slots is easy. Actually configuring auto-swap with slot-specific settings? That's where the exam lives.

4. Underestimating the code questions. I expected pseudocode. The exam showed me real C# with Azure SDK calls. If you don't know what BlobClient.UploadAsync() looks like in context, practice it.

5. Not timing practice tests. The exam gives you 2 hours. If you're averaging 3 minutes per question in practice, you'll run out of time on case studies.

Exam Day Tips

A few practical things that helped on the day:

• Read case studies carefully. They front-load requirements and some details only matter for specific questions. Don't rush
• Flag and move on. If a question takes more than 2.5 minutes, flag it. Come back with fresh eyes
• Eliminate obviously wrong answers. Even on tough questions, you can usually knock out 2 options quickly
• Watch for "managed identity" as the answer. Microsoft pushes this hard as the recommended auth pattern

Is AZ-204 Worth It in 2026?

Short answer: yes, if you're a developer working with or wanting to work with Azure.

The certification validates skills that are genuinely in demand. Azure's developer tools have gotten really good — Functions, Container Apps, APIM — and companies want developers who know how to use them properly, not just deploy VMs.

If you're choosing between AZ-204 and AZ-104, the question is simple: are you a developer or an admin? Developer → AZ-204. Infrastructure person → AZ-104. Both? Do AZ-204 first, then AZ-400 for the DevOps angle.

Salary-wise, Azure Developer Associates in Australia average $130K-$160K AUD. In the US, it's $115K-$145K USD. The cert won't guarantee these numbers, but it gets your resume past the screening algorithm.

Frequently Asked Questions