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

Which type of blob is best suited for streaming audio or video?

1. Block Blob

2. Page Blob

3. Append Blob

4. Archive Blob

The correct answer is: Block Blob

The best type of blob for streaming audio or video is the block blob. Block blobs are optimized for storing large amounts of unstructured data, such as media files, images, and documents. They are designed to be efficient for scenarios involving high throughput and quick access, which is essential for streaming applications where data is accessed sequentially. Block blobs allow you to upload a large file in smaller blocks and then commit those blocks as a single blob, enabling efficient uploads and management of media files. This capability makes them ideal for scenarios like audio and video streaming, where data needs to be accessed seamlessly and quickly by users. The other types of blobs serve different purposes: page blobs are primarily used for virtual hard disk files and allow random read/write operations; append blobs are designed for scenarios where data is continuously added, such as logging; and archive blobs are used for storing infrequently accessed data at a lower cost, as they require rehydration to access the data.