Azure AZ-204 Storage Guide

Study Azure AZ-204 Storage: key concepts, common traps, and exam decision cues.

This chapter focuses on the data-access code paths Microsoft expects developers to know well. AZ-204 is not testing every Azure data service equally here. It is especially testing Cosmos DB and Blob Storage implementation patterns through their SDKs and operational settings.

Current weight in the study guide

Microsoft currently weights Develop for Azure storage at 15-20% of the exam.

Work this chapter in order

Lesson	Focus
2.1 Cosmos DB, Consistency & Change Feed	Learn the core container, item, consistency, and change-notification patterns for Cosmos DB.
2.2 Blob Storage, Metadata & Lifecycle	Learn the object, metadata, and lifecycle-management controls AZ-204 expects you to implement.

What strong answers usually do

choose the right storage SDK path before tuning application logic
separate operational retention or lifecycle behavior from normal CRUD code
recognize when the question is about data-change notification rather than simple reads or writes

In this section

Azure AZ-204 Cosmos DB Guide
Study Azure AZ-204 Cosmos DB: key concepts, common traps, and exam decision cues.
Azure AZ-204 Blob Storage Guide
Study Azure AZ-204 Blob Storage: key concepts, common traps, and exam decision cues.

Revised on Sunday, May 10, 2026

1. Compute

3. Security