AZ-204 Azure Developer Associate Cheat Sheet – 2026 Exam Notes

The Microsoft Azure Developer Associate (AZ-204) is the essential certification for cloud developers. While the AZ-104 is about managing infrastructure, the AZ-204 is about coding against it . If you're preparing for the 2026 exam, this deep-dive covers the critical SDK patterns, consistency models, and configuration "gotchas." 1. Develop Azure Compute Solutions (25-30%) As a developer, you need to know how to host code without managing the underlying VM. App Service (PaaS) Deployment Slots: (Standard tier+) Used for zero-downtime deployments. Sticky Settings: Mark as "Deployment slot setting" to prevent a setting (like a Dev DB string) from moving to Prod during a swap. CORS: Must be configured in the App Service portal to allow cross-origin JavaScript calls from your frontend. Azure Functions (Serverless) Consumption Plan: Automatic scaling, pay-per-execution. 1.5GB RAM limit. Premium Plan: Eliminates cold starts, VNET integration, longer timeouts. Durable Functions: State management