20+ practice questions focused on Design data storage solutions — one of the most tested topics on the Microsoft Azure Solutions Architect Expert AZ-305 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Design data storage solutions PracticeA company runs a legacy application on Azure Virtual Machines. The application uses a SQL Server database that requires 50,000 IOPS consistently. It also uses a shared file system for storing documents. They plan to migrate from on-premises where they used a SAN for block storage and NAS for file shares. Which combination of Azure storage should they use to meet performance requirements?
Explanation: Premium SSD v2 and Ultra Disk both can deliver 50,000 IOPS on a single managed disk. The database performance requirement is the only stated performance requirement; the shared file system simply needs to be a NAS replacement, which Azure Files standard tier does. Therefore, option C also meets the requirements. The original explanation misleadingly singles out Premium SSD v2 as the only disk tier capable of 50,000 IOPS, ignoring Ultra Disk.
A company needs to store and analyze petabytes of semi-structured data from IoT devices. The data is append-only and written in time order. They need to support fast queries on time ranges and also aggregate data in real-time. Which Azure data service should they use?
Explanation: Azure Data Explorer (ADX) is purpose-built for high-performance analysis of large volumes of time-series and semi-structured data. It supports append-only ingestion, optimized time-range queries via its columnar storage and indexing, and real-time aggregation using Kusto Query Language (KQL) with built-in materialized views and update policies.
A company is building a big data analytics platform that will process structured, semi-structured, and unstructured data using Azure Synapse Analytics and other tools. They need a storage layer that supports hierarchical namespaces and fine-grained access control at the directory level. Which Azure storage solution should they use?
Explanation: Azure Data Lake Storage Gen2 (ADLS Gen2) is the correct choice because it combines Azure Blob Storage with a hierarchical namespace, enabling directory-level access control lists (ACLs) and POSIX-compliant permissions. This is essential for the big data analytics platform described, as it must support structured, semi-structured, and unstructured data with fine-grained access control at the directory level, which Azure Synapse Analytics can directly query via ABFS (Azure Blob File System) driver.
A global e-commerce company needs a database solution that can handle high-velocity writes from user transactions across multiple regions. They require multi-region writes with automatic conflict resolution and single-digit millisecond latency for reads and writes. Which Azure data store should they use?
Explanation: Azure Cosmos DB is the correct choice because it offers multi-region writes with automatic conflict resolution using last-writer-wins (LWW) or custom conflict resolution policies, and it guarantees single-digit millisecond latency for both reads and writes at the 99th percentile. Its globally distributed, multi-model design is purpose-built for high-velocity transactional workloads that require active-active replication across regions.
A financial company must store customer transaction records in Azure Blob Storage. Regulatory requirements mandate that the records must not be modified or deleted for 7 years. Even administrators must be unable to alter or remove the blobs during this period. Which Azure Blob Storage feature should they enable?
Explanation: Immutable storage with a time-based retention policy (WORM – Write Once, Read Many) ensures that blobs cannot be modified or deleted for a specified duration, even by administrators. This directly satisfies the 7-year regulatory requirement by locking the data at the storage level, overriding any delete or write operations.
+15 more Design data storage solutions questions available
Practice all Design data storage solutions questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Design data storage solutions. 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
Design data storage solutions questions on the AZ-305 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. Design data storage solutions is tested as part of the Microsoft Azure Solutions Architect Expert AZ-305 blueprint. Practicing with targeted Design data storage solutions questions ensures you can handle any format or difficulty that appears.
Yes. Courseiva provides free AZ-305 practice questions across all exam topics and domains. The platform includes topic-based practice, mock exams, missed-question review, bookmarked questions, and readiness tracking — no account required.
Difficulty is subjective, but Design data storage solutions 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.
Launch a full Design data storage solutions practice session with instant scoring and detailed explanations.
Start Design data storage solutions Practice →