Microsoft Azure Fundamentals AZ-900 Practice Exam 2025 – Complete Study Resource

The correct answer is Azure Cosmos DB, as this database service is specifically designed to support NoSQL data models. NoSQL databases are ideal for applications that require high throughput and low latency, as well as those that need to handle large volumes of unstructured or semi-structured data. Azure Cosmos DB offers support for multiple data models, including key-value, document, graph, and column-family, making it a versatile choice for developers looking to build scalable applications.

In contrast, Azure SQL Database and SQL Data Warehouse are designed for relational database management systems and primarily utilize Structured Query Language (SQL) with fixed schemas, which is not conducive to NoSQL data models. SQL Server on VMs is a traditional relational database solution that runs on virtual machines, also leveraging SQL for querying and structured data management. These options lack the flexibility and scalability associated with NoSQL databases like Azure Cosmos DB.