- A
Azure SQL Database Elastic Pool
Correct. Elastic pools allow multiple databases to share a set of resources, providing cost-effective performance management for databases with varying and unpredictable usage.
- B
Azure SQL Database (single database) with Serverless compute tier
Why wrong: Incorrect. Serverless is for a single database that can auto-scale compute and pause during inactivity, but doesn't share resources across multiple databases. For 20 databases, you'd need 20 instances, which is less cost-efficient.
- C
Azure SQL Managed Instance
Why wrong: Incorrect. Managed Instance is a PaaS offering that provides near 100% compatibility with on-premises SQL Server, but it is designed for fewer, larger databases and does not offer elastic pooling of resources across instances.
- D
Azure SQL Database Hyperscale
Why wrong: Incorrect. Hyperscale is for a single large database (often terabytes) with high scalability requirements for storage and compute, not for sharing resources among many smaller databases.
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 has a suite of 20 e-commerce applications, each with its own SQL Server database. The databases vary in size from 5 GB to 100 GB and have unpredictable usage patterns with bursty peaks. The company wants to migrate to Azure SQL Database to benefit from built-in high availability and automatic backups. They need to minimize costs by only paying for the resources each database actually uses, and they want to avoid over-provisioning for peak loads. Which Azure SQL Database deployment option should they choose?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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 Elastic Pool
Azure SQL Database Elastic Pool is the correct choice because it allows multiple databases to share a fixed pool of resources (DTUs or vCores), enabling cost efficiency by pooling and reallocating resources across databases with unpredictable, bursty usage patterns. This avoids over-provisioning for peak loads while still providing built-in high availability and automatic backups, as each database in the pool benefits from these features without needing individual resource reservations.
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 Elastic Pool
Why this is correct
Correct. Elastic pools allow multiple databases to share a set of resources, providing cost-effective performance management for databases with varying and unpredictable usage.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Azure SQL Database (single database) with Serverless compute tier
Why it's wrong here
Incorrect. Serverless is for a single database that can auto-scale compute and pause during inactivity, but doesn't share resources across multiple databases. For 20 databases, you'd need 20 instances, which is less cost-efficient.
- ✗
Azure SQL Managed Instance
Why it's wrong here
Incorrect. Managed Instance is a PaaS offering that provides near 100% compatibility with on-premises SQL Server, but it is designed for fewer, larger databases and does not offer elastic pooling of resources across instances.
- ✗
Azure SQL Database Hyperscale
Why it's wrong here
Incorrect. Hyperscale is for a single large database (often terabytes) with high scalability requirements for storage and compute, not for sharing resources among many smaller databases.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the Serverless compute tier (which auto-pauses for cost savings on a single database) with the Elastic Pool (which shares resources across multiple databases), leading them to choose Serverless for cost minimization without recognizing the need for resource pooling across 20 databases.
Detailed technical explanation
How to think about this question
Elastic Pools use a shared resource model where the pool's eDTUs or vCores are dynamically distributed among databases based on real-time demand, with a per-database min and max cap to ensure fairness. This is ideal for SaaS or multi-tenant scenarios where databases have low average utilization but occasional spikes, as the pool absorbs bursts without requiring each database to be sized for peak load. Under the hood, the Azure SQL Database service monitors each database's DTU consumption and reallocates resources at sub-second intervals, making it effective for unpredictable patterns.
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.
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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 Elastic Pool — Azure SQL Database Elastic Pool is the correct choice because it allows multiple databases to share a fixed pool of resources (DTUs or vCores), enabling cost efficiency by pooling and reallocating resources across databases with unpredictable, bursty usage patterns. This avoids over-provisioning for peak loads while still providing built-in high availability and automatic backups, as each database in the pool benefits from these features without needing individual resource reservations.
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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
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