Microsoft Certified: Azure Fundamentals (AZ-900) Practice Exam

Which is an example of Azure unstructured data storage?

1. Cosmos DB

2. SQL Database

3. BLOB Storage

4. Data Lake

The correct answer is: BLOB Storage

BLOB Storage is a prime example of Azure unstructured data storage as it is specifically designed to store large amounts of unstructured data, such as images, videos, audio files, and other types of textual or binary data. Unstructured data refers to information that does not fit neatly into traditional database tables or structured formats, making BLOB Storage an ideal solution for scenarios where flexibility in data types and sizes is required. Azure's BLOB Storage allows developers to efficiently store and retrieve any type of data without concerned restrictions regarding data schema, providing a scalability that is critical for applications dealing with massive amounts of diverse content. This makes it especially valuable for applications like media services, backup and restore solutions, and big data analytics. In contrast, Azure Cosmos DB and Azure SQL Database are both examples of structured data storage. They require a pre-defined schema, which organizes data into rows and columns, making them less flexible compared to unstructured storage solutions. Furthermore, while a Data Lake can also handle unstructured data, its primary purpose is to store vast amounts of raw data in its native format until it's needed for analysis. Thus, BLOB Storage stands out specifically for efficient storage and access of unstructured and diverse data formats.