Quick Answer
The answer is Azure Blob Storage, because it is the correct Azure service for storing schema-less JSON event data durably and with high availability. Azure Blob Storage treats each JSON payload as an opaque blob, meaning it does not require a predefined schema or table structure, making it ideal for ingesting event data from multiple sources where the JSON structure may vary over time. On the Microsoft Azure Data Fundamentals DP-900 exam, this question tests your understanding of the core storage services and their appropriate use cases—specifically distinguishing between schema-required databases like Azure SQL Database, ingestion pipelines like Event Hubs, and orchestration tools like Data Factory. A common trap is confusing Event Hubs, which is for real-time ingestion and temporary buffering, with Blob Storage, which is designed for long-term, durable storage. Remember: if the scenario emphasizes “store for later analysis” and “no schema,” think blobs. Memory tip: “Blobs don’t need a schema—just dump the JSON and store.”
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 need to store event data from multiple sources in a schema-less format for later analysis. The data arrives as JSON and must be durable and highly available. Which Azure service should you use?
Azure Blob Storage
Blob Storage stores unstructured data durably.
Azure SQL Database
Why wrong: SQL Database requires a predefined schema.
Azure Event Hubs
Why wrong: Event Hubs is for real-time ingestion, not storage.
Azure Data Factory
Why wrong: Data Factory is for data integration, not storage.
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 A is correct because Azure Blob Storage provides durable, highly available storage for JSON blobs with schema-less format. Option B is wrong because Azure SQL Database requires a schema. Option C is wrong because Azure Event Hubs is for ingestion, not long-term storage. Option D is wrong because Azure Data Factory is an orchestration service.
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 Blob Storage
Why this is correct
Blob Storage stores unstructured data durably.
Related concept
Read the scenario before looking for a memorised answer.
Azure SQL Database
Why it's wrong here
SQL Database requires a predefined schema.
Azure Event Hubs
Why it's wrong here
Event Hubs is for real-time ingestion, not storage.
Azure Data Factory
Why it's wrong here
Data Factory is for data integration, not storage.
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 A is correct because Azure Blob Storage provides durable, highly available storage for JSON blobs with schema-less format. Option B is wrong because Azure SQL Database requires a schema. Option C is wrong because Azure Event Hubs is for ingestion, not long-term storage. Option D is wrong because Azure Data Factory is an orchestration service.
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.
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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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