- A
Azure Cosmos DB SQL API
Why wrong: Azure Cosmos DB provides rich querying capabilities and low latency, but it is more expensive than Azure Table Storage, especially for simple key-value workloads. The scenario values cost-effectiveness.
- B
Azure Table Storage
Azure Table Storage is a serverless, cost-effective key-value store ideal for storing and querying semi-structured data by a key (product ID). It meets the latency and budget requirements.
- C
Azure Blob Storage
Why wrong: Azure Blob Storage is for unstructured data (e.g., images, videos). It does not offer efficient key-value lookups within files and is not designed for item-level querying.
- D
Azure SQL Database
Why wrong: Azure SQL Database is a relational database that requires provisioning and managing compute resources, making it less cost-effective and not fully serverless for this simple workload.
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 company stores customer reviews for an e-commerce site. Each review contains a product ID, user ID, rating, and optional comments and images. The reviews are written once and rarely updated. The company needs to query reviews by product ID with low latency and also perform simple key-value lookups. They want a cost-effective, serverless solution that requires no scaling management. Which Azure data store should they choose?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Azure Table Storage
Azure Table Storage is a cost-effective, serverless NoSQL key-value store that supports simple key-value lookups and querying by partition key (e.g., ProductID) with low latency. It requires no scaling management, as it automatically scales based on demand, and is ideal for immutable, rarely-updated data like customer reviews. The pay-per-request pricing model makes it highly cost-effective for this workload.
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 Cosmos DB SQL API
Why it's wrong here
Azure Cosmos DB provides rich querying capabilities and low latency, but it is more expensive than Azure Table Storage, especially for simple key-value workloads. The scenario values cost-effectiveness.
- ✓
Azure Table Storage
Why this is correct
Azure Table Storage is a serverless, cost-effective key-value store ideal for storing and querying semi-structured data by a key (product ID). It meets the latency and budget requirements.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Azure Blob Storage
Why it's wrong here
Azure Blob Storage is for unstructured data (e.g., images, videos). It does not offer efficient key-value lookups within files and is not designed for item-level querying.
- ✗
Azure SQL Database
Why it's wrong here
Azure SQL Database is a relational database that requires provisioning and managing compute resources, making it less cost-effective and not fully serverless for this simple workload.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose Azure Cosmos DB for any NoSQL scenario, overlooking that Azure Table Storage is the simpler, more cost-effective serverless option for basic key-value workloads without global distribution or complex querying needs.
Trap categories for this question
Scenario analysis trap
Azure Cosmos DB provides rich querying capabilities and low latency, but it is more expensive than Azure Table Storage, especially for simple key-value workloads. The scenario values cost-effectiveness.
Detailed technical explanation
How to think about this question
Azure Table Storage uses a partition key (e.g., ProductID) and row key (e.g., UserID) to enable fast, single-partition queries with O(1) latency. It supports up to 20 TB per table and automatically partitions data across nodes, requiring no manual sharding. The service is ideal for immutable audit logs or event sourcing patterns where data is written once and rarely updated.
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Describe considerations for working with non-relational data on Azure — study guide chapter
Learn the concepts, then practise the questions
- →
Describe considerations for working with non-relational data on Azure practice questions
Targeted practice on this topic area only
- →
All DP-900 questions
982 questions across all exam domains
- →
Microsoft Azure Data Fundamentals DP-900 study guide
Full concept coverage aligned to exam objectives
- →
DP-900 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related DP-900 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Describe core data concepts practice questions
Practise DP-900 questions linked to Describe core data concepts.
Describe an analytics workload on Azure practice questions
Practise DP-900 questions linked to Describe an analytics workload on Azure.
Identify considerations for relational data on Azure practice questions
Practise DP-900 questions linked to Identify considerations for relational data on Azure.
Describe considerations for working with non-relational data on Azure practice questions
Practise DP-900 questions linked to Describe considerations for working with non-relational data on Azure.
DP-900 fundamentals practice questions
Practise DP-900 questions linked to DP-900 fundamentals.
DP-900 scenario practice questions
Practise DP-900 questions linked to DP-900 scenario.
DP-900 troubleshooting practice questions
Practise DP-900 questions linked to DP-900 troubleshooting.
Practice this exam
Start a free DP-900 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this DP-900 question test?
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 Table Storage — Azure Table Storage is a cost-effective, serverless NoSQL key-value store that supports simple key-value lookups and querying by partition key (e.g., ProductID) with low latency. It requires no scaling management, as it automatically scales based on demand, and is ideal for immutable, rarely-updated data like customer reviews. The pay-per-request pricing model makes it highly cost-effective for this workload.
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
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More DP-900 practice questions
- An e-commerce application processes customer orders. When an order is placed, the system must decrement the inventory co…
- A company runs an e-commerce application on Azure SQL Database. The application experiences heavy read traffic from repo…
- A company uses Azure SQL Database for an order management system. The Orders table has columns: OrderID (int, primary ke…
- A gaming company stores player scores in Azure Cosmos DB using the NoSQL API. Each document contains fields: PlayerID (u…
- A gaming company stores player profiles as JSON documents. Each profile includes standard fields like playerId, username…
- A company is migrating an on-premises SQL Server database to Azure. They want to ensure that database administrators (DB…
Last reviewed: Jun 11, 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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.