Quick Answer
The answer is Azure Blob Storage, as it is the only Azure data store designed to handle large binary files up to 100 GB each while supporting frequent reads, concurrent HTTPS access, and rare updates. Azure Blob Storage can accommodate individual blobs up to 190.7 TiB and is optimized for read-heavy workloads through its block blob architecture, which allows parallel chunking and retrieval. On the DP-900 exam, this question tests your ability to match workload patterns—specifically large binary files with high read concurrency—to the correct storage service, often contrasting Blob Storage with Azure Files (limited to 4 TiB per file and better for shared drives) or Cosmos DB (built for transactional NoSQL data). A common trap is choosing Azure Files for its familiarity, but remember that blob storage is purpose-built for unstructured binary data at scale. Memory tip: think “BLOB = Big Large Object Binary,” and if it’s a massive file that’s read often but rarely changed, Blob Storage is your go-to.
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.
You are designing a solution to store large binary files (up to 100 GB each) that are frequently read but rarely updated. The data must be accessible via HTTPS and support concurrent reads. Which Azure data store should you use?
Azure Files
Why wrong: File size limit and protocol not optimized for large binary blobs.
Azure Cosmos DB
Why wrong: Designed for transactional NoSQL data, not large binary files.
Azure NetApp Files
Why wrong: Overkill for simple blob storage; higher cost and complexity.
Azure Blob Storage
Supports large blobs, HTTPS access, and concurrent reads.
Answer choices
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
Option B is correct because Azure Blob Storage supports large blobs (up to 190.7 TiB) and is optimized for read-heavy workloads with HTTPS access and concurrent reads. Option A is wrong because Azure Files has a maximum file size of 4 TiB and is designed for file shares, not large binary blobs. Option C is wrong because Cosmos DB is for NoSQL transactional data, not large binary files. Option D is wrong because Azure NetApp Files is for high-performance file workloads, but more complex and expensive for simple blob storage.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Azure Files
Why it's wrong here
File size limit and protocol not optimized for large binary blobs.
Azure Cosmos DB
Why it's wrong here
Designed for transactional NoSQL data, not large binary files.
Azure NetApp Files
Why it's wrong here
Overkill for simple blob storage; higher cost and complexity.
Azure Blob Storage
Why this is correct
Supports large blobs, HTTPS access, and concurrent reads.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Identify which DP-900 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
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..
The correct answer is: Azure Blob Storage — Option B is correct because Azure Blob Storage supports large blobs (up to 190.7 TiB) and is optimized for read-heavy workloads with HTTPS access and concurrent reads. Option A is wrong because Azure Files has a maximum file size of 4 TiB and is designed for file shares, not large binary blobs. Option C is wrong because Cosmos DB is for NoSQL transactional data, not large binary files. Option D is wrong because Azure NetApp Files is for high-performance file workloads, but more complex and expensive for simple blob storage.
Identify which DP-900 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
About these practice questions
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Same concept, more angles
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. You are designing a solution to store large binary files (videos) for a media company. The solution must support tiered storage to optimize costs based on access frequency. Which Azure storage option should you use?
mediumWhy C: Option C is correct because Azure Blob Storage supports access tiers (Hot, Cool, Archive) for cost optimization. Option A is wrong because Azure Files is for file shares, not tiered storage for videos. Option B is wrong because Azure Disk Storage is for VM disks, not object storage. Option D is wrong because Azure Cosmos DB is a database, not for storing large binary files.
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Last reviewed: Jun 20, 2026
This DP-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DP-900 exam.
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