AZ-204: Developing Solutions for Microsoft Azure Exam Guide

What is this page about?

An exam guide to the Microsoft AZ-204 (Azure Developer Associate), the developer counterpart to the administrator-focused AZ-104, which expects one to two years of experience in a supported language (C#, Java, JavaScript, Python) plus hands-on work with Azure SDKs and CLI. It covers the five domains, developing compute solutions (App Service, Functions, containers), storage (Blob and Cosmos DB SDKs), security (Microsoft identity platform, Key Vault, API Management), monitoring and optimization (Application Insights, Redis cache), and connecting to services (Service Bus), with a preparation strategy and lab setup.

What has been corrected on this page?

Every accepted correction to this page is recorded with the exact change, so readers can see how the page improved over time.

1. 11 July 2026 · corrected by Melik Can Sariyer

   3 flagged claims verified. The 2024 Stack Overflow Developer Survey claim (28% of developers use Azure, second most widely used) was CONFIRMED EXACTLY ACCURATE via search -- left unchanged. 2 unverified quotes (Jeff Hollan, Mark Simos -- both real Microsoft-affiliated technical figures) de-attributed; neither specific quote verifiable despite real backgrounds and titles.

   What the page claimed

   "Azure Functions fundamentally changed how we architect event-driven systems..." -- Jeff Hollan, Principal Program Manager for Azure Functions at Microsoft / "The shift to managed identities in production Azure applications is the single most impactful security improvement developers can make..." -- Mark Simos, Lead Cybersecurity Architect at Microsoft

   What was corrected

   Azure Functions fundamentally changed how many teams architect event-driven systems; the binding model means code focuses on business logic while Azure handles infrastructure as first-class inputs and outputs (unattributed prose). / The shift to managed identities in production Azure applications is one of the most impactful security improvements developers can make (unattributed prose). Also removed the two now-orphaned reference-list citations (Hollan, Simos) tied to the removed quotes.

   Why: 2024 Stack Overflow Developer Survey claim (28% of developers use Azure, second most widely used) was confirmed exactly accurate via search and left unchanged. Two unverified quotes (Jeff Hollan, Mark Simos, both real Microsoft-affiliated technical figures) were de-attributed since neither specific quote was verifiable despite real backgrounds and titles.

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