Question 906 of 982

Identify considerations for relational data on Azure →mediumMultiple ChoiceObjective-mapped

Quick Answer

The answer is Azure SQL Database, because it is the fully managed relational database service designed to handle high concurrency, fast inserts, and enforce referential integrity through foreign key constraints and ACID transactions. For an e-commerce platform storing order data, Azure SQL Database provides row-level locking to manage concurrent writes efficiently, ensuring that relationships between tables like Customers and Orders remain consistent even under heavy load. On the Microsoft Azure Data Fundamentals DP-900 exam, this scenario tests your ability to match workload requirements—such as transactional consistency and relational structure—to the correct Azure data service. A common trap is confusing Azure SQL Database with Cosmos DB, but remember: if the question mentions foreign keys, joins, or referential integrity, you need a relational database, not a NoSQL solution. Memory tip: think “SQL for structured, strict relationships” to quickly identify when to use Azure SQL Database for relational data.

DP-900 Practice Question: Identify considerations for relational data on Azure

This DP-900 practice question tests your understanding of identify considerations for 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 needs to store order data for an e-commerce platform. The system requires high concurrency, fast inserts, and the ability to enforce referential integrity between tables (e.g., Customers and Orders). Which Azure service should they use?

Question 1mediummultiple choice

Full question →

A
Azure SQL Database
Correct. Azure SQL Database is a fully managed relational database that supports ACID transactions, foreign keys, and high concurrency, making it ideal for transactional e-commerce order data.
B
Azure Cosmos DB
Why wrong: Incorrect. Cosmos DB is a NoSQL database that offers flexible schemas and global distribution but does not enforce referential integrity or support traditional relational constraints.
C
Azure Blob Storage
Why wrong: Incorrect. Blob Storage is an object storage service designed for unstructured data like images, videos, and backups. It does not provide relational capabilities.
D
Azure Data Lake Storage Gen2
Why wrong: Incorrect. Data Lake Storage is built on Blob Storage and is optimized for big data analytics. It does not enforce schema or referential integrity constraints.

Full breakdown with real-world context →

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 SQL Database

Azure SQL Database is a fully managed relational database service that supports high concurrency, fast inserts, and enforces referential integrity through foreign key constraints. It provides ACID transactions and row-level locking to handle concurrent writes efficiently, making it ideal for e-commerce order processing where data consistency between Customers and Orders tables is critical.

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 SQL Database
Why this is correct
Correct. Azure SQL Database is a fully managed relational database that supports ACID transactions, foreign keys, and high concurrency, making it ideal for transactional e-commerce order data.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Cosmos DB
Why it's wrong here
Incorrect. Cosmos DB is a NoSQL database that offers flexible schemas and global distribution but does not enforce referential integrity or support traditional relational constraints.
✗
Azure Blob Storage
Why it's wrong here
Incorrect. Blob Storage is an object storage service designed for unstructured data like images, videos, and backups. It does not provide relational capabilities.
✗
Azure Data Lake Storage Gen2
Why it's wrong here
Incorrect. Data Lake Storage is built on Blob Storage and is optimized for big data analytics. It does not enforce schema or referential integrity constraints.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates confuse high concurrency and fast inserts with NoSQL solutions like Cosmos DB, overlooking the explicit requirement for referential integrity which only a relational database like Azure SQL Database can enforce.

Detailed technical explanation

How to think about this question

Azure SQL Database uses SQL Server’s row-versioning concurrency control (snapshot isolation) to allow high-concurrency reads without blocking writes, while foreign key constraints are enforced at the database engine level using index-based checks. In a real-world e-commerce scenario, this ensures that an order cannot reference a non-existent customer, preventing orphaned records even under thousands of simultaneous insert operations.

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 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

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.

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.

10 questions 20 questions 30 questions 50 questions Timed 30

DP-900 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this DP-900 question test?

Identify considerations for relational data on Azure — This question tests Identify considerations for 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 SQL Database — Azure SQL Database is a fully managed relational database service that supports high concurrency, fast inserts, and enforces referential integrity through foreign key constraints. It provides ACID transactions and row-level locking to handle concurrent writes efficiently, making it ideal for e-commerce order processing where data consistency between Customers and Orders tables is critical.

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 →

How Courseiva writes practice questions · Editorial policy

Keep practising

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.

Loading comments…

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.