20+ practice questions focused on Develop for Azure storage — one of the most tested topics on the Microsoft Azure Developer Associate AZ-204 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Develop for Azure storage PracticeA company stores archival data in Azure Blob Storage. The data is accessed only a few times per year, and retrieval can take up to 15 hours. Which blob access tier minimizes storage costs while meeting these requirements?
Explanation: The Archive tier is the correct choice because it is designed for data that is rarely accessed (a few times per year) and has a retrieval latency of up to 15 hours, which matches the requirement. It offers the lowest storage cost among Azure Blob Storage tiers, making it optimal for long-term archival data where infrequent access and delayed retrieval are acceptable.
You are building a serverless application that needs to react to insertions and updates in an Azure Cosmos DB container. You want to process these changes using an Azure Function. Which trigger should you configure for the function?
Explanation: A Cosmos DB trigger is the correct choice because it is specifically designed to react to changes in a Cosmos DB container by leveraging the change feed. The Azure Function runtime polls the change feed for inserts and updates, invoking the function with batches of documents as they occur. This provides a native, serverless integration without needing additional services.
You are developing an application that writes logs to Azure Blob Storage. Each log entry is small (less than 1 KB) and you need to store millions of entries per day. You want to minimize storage costs and maximize write throughput. Which blob type should you use?
Explanation: Append blobs are optimized for append operations, making them ideal for logging scenarios where each log entry is appended to the blob. They provide high throughput for write-heavy, sequential append workloads and are cost-effective because they use the same block blob pricing but avoid the overhead of managing individual blocks for each small entry.
You need to upload large files (up to 100 GB) to Azure Blob Storage from a web application. The upload must be resilient to network failures and support pausing/resuming. Which approach should you use?
Explanation: Option B is correct because block blobs support uploading large files (up to ~4.75 TB) by splitting the file into multiple blocks, uploading them in parallel for speed, and committing the block list atomically. This approach provides resilience to network failures (individual blocks can be retried) and supports pausing/resuming by tracking which blocks have been uploaded.
You need to store millions of small log entries (each <1 KB) per day from an IoT device. The logs are rarely read. Which storage solution is most cost-effective?
Explanation: Azure Blob Storage Block Blob is the most cost-effective solution for storing millions of small log entries (<1 KB) that are rarely read because it offers extremely low storage costs per GB, supports high-throughput ingestion, and is optimized for large-scale, append-oriented workloads. Block blobs can be stored in the 'Cool' or 'Archive' access tier to further reduce costs, and they can be efficiently batched into larger blocks (up to 100 MB per block) to minimize transaction costs.
+15 more Develop for Azure storage questions available
Practice all Develop for Azure storage questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Develop for Azure storage. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Develop for Azure storage questions on the AZ-204 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Develop for Azure storage is tested as part of the Microsoft Azure Developer Associate AZ-204 blueprint. Practicing with targeted Develop for Azure storage questions ensures you can handle any format or difficulty that appears.
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Difficulty is subjective, but Develop for Azure storage is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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