Azure Blob Storage is the correct choice for storing large media files like high-resolution images and videos because it is purpose-built for massive amounts of unstructured binary data, supporting individual objects up to 4.75 TB. The service’s tiered storage—including cool and archive tiers—optimizes cost for files accessed only a few times per month, while still delivering low-latency retrieval (typically under 10 seconds) when needed, meeting the company’s performance requirements. On the DP-900 exam, this scenario tests your understanding of Azure’s data storage services and their appropriate use cases; a common trap is confusing Blob Storage with Azure Files (which is for shared file systems) or Azure SQL (for relational data). Remember that Blob Storage handles binary large objects, so think “BLOB = Big Large Objects” for media files, and pair it with a separate metadata store like Cosmos DB or a simple database for the small metadata fields.
DP-900 Practice Question: Describe considerations for working with non-relational data on Azure
This DP-900 practice question tests your understanding of describe considerations for working with non-relational data on azure. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A media publishing company stores high-resolution images and video files for their website. These files are large (hundreds of MBs each) and are accessed only a few times per month, but when accessed, they must be delivered within seconds. Additionally, they need to store a small amount of metadata (e.g., upload date, author) for each file. Which Azure service should they use for storing the binary files?
Why wrong: Azure Table Storage is a NoSQL key-value store for structured data, not suitable for large binary files.
B
Azure Blob Storage
Azure Blob Storage is optimized for large unstructured binary objects and supports custom metadata.
C
Azure File Storage
Why wrong: Azure File Storage provides SMB file shares for applications that need a network file system, not ideal for large binary objects with metadata.
D
Azure Queue Storage
Why wrong: Azure Queue Storage is a messaging service for asynchronous communication, not for storing files.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Blob Storage
Azure Blob Storage is designed for storing massive amounts of unstructured binary data, such as high-resolution images and video files. It supports objects up to 4.75 TB in size, offers tiered storage (including cool and archive tiers) to optimize cost for infrequently accessed data, and provides low-latency access (typically under 10 seconds) for retrieval when needed. This makes it the ideal choice for the media publishing company's requirements.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Azure Table Storage
Why it's wrong here
Azure Table Storage is a NoSQL key-value store for structured data, not suitable for large binary files.
✓
Azure Blob Storage
Why this is correct
Azure Blob Storage is optimized for large unstructured binary objects and supports custom metadata.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure File Storage
Why it's wrong here
Azure File Storage provides SMB file shares for applications that need a network file system, not ideal for large binary objects with metadata.
✗
Azure Queue Storage
Why it's wrong here
Azure Queue Storage is a messaging service for asynchronous communication, not for storing files.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Azure Table Storage (for metadata) with the primary storage for binary files, or they assume Azure File Storage (SMB shares) is suitable for web-serving large media files, when in fact Blob Storage is the correct service for unstructured binary data with infrequent access patterns.
Detailed technical explanation
How to think about this question
Azure Blob Storage supports three access tiers (hot, cool, archive) that allow automatic cost optimization based on access frequency; for files accessed only a few times per month, the cool tier reduces storage costs while still providing near-instant retrieval (latency in milliseconds). Additionally, blob storage integrates with Azure Content Delivery Network (CDN) to cache content at edge locations, further reducing delivery time for globally distributed users. Under the hood, blobs are stored as objects in a flat namespace within containers, and each blob can have custom metadata (key-value pairs) attached, which can store the upload date and author without needing a separate database.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-900 question in full detail.
Describe considerations for working with non-relational data on Azure — This question tests Describe considerations for working with non-relational data on Azure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Blob Storage — Azure Blob Storage is designed for storing massive amounts of unstructured binary data, such as high-resolution images and video files. It supports objects up to 4.75 TB in size, offers tiered storage (including cool and archive tiers) to optimize cost for infrequently accessed data, and provides low-latency access (typically under 10 seconds) for retrieval when needed. This makes it the ideal choice for the media publishing company's requirements.
What should I do if I get this DP-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A media company needs to store millions of high-resolution photos for a public website. Each photo can be up to 50 MB. The storage solution must support secure access via URLs. Which Azure service should they use?
medium
A.Azure Table Storage
✓ B.Azure Blob Storage
C.Azure Files
D.Azure SQL Database
Why B: Azure Blob Storage is the correct choice because it is designed for storing massive amounts of unstructured data, such as high-resolution photos, and supports objects up to 4.7 TB per blob, easily accommodating 50 MB files. It provides secure access via URLs using shared access signatures (SAS) or public access levels, making it ideal for a public website serving media content.
Variation 2. A media company needs to store thousands of high-resolution videos. Each video is up to 10 GB in size and must be accessible via HTTP/HTTPS URLs for playback. The company does not require a file system hierarchy or SMB protocol support. Which Azure storage solution is most appropriate for this scenario?
easy
✓ A.Azure Blob Storage
B.Azure Files
C.Azure Queue Storage
D.Azure Table Storage
Why A: Azure Blob Storage is designed for storing massive amounts of unstructured data, such as high-resolution videos, and provides HTTP/HTTPS access via URLs. It supports objects up to 4.77 TiB (or larger with premium block blobs), easily accommodating 10 GB files, and offers no file system hierarchy or SMB protocol, matching the company's requirements exactly.
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Question Discussion
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