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 multiple independent databases for different business units, each with low to moderate usage and varying workload patterns. They want to consolidate these databases into a single Azure SQL Database deployment option to share resources and reduce costs, while ensuring that databases do not starve each other of resources. Which Azure SQL Database deployment option should they choose?
Correct. Elastic pools provide a set of shared resources for multiple databases, optimizing cost and performance for databases with varying load patterns.
B
Single database (DTU model)
Why wrong: Incorrect. Single databases are isolated and pay for their own resources, which would be more expensive for several small databases compared to an elastic pool.
C
Managed Instance
Why wrong: Incorrect. Managed Instance is designed for lift-and-shift scenarios with near 100% SQL Server compatibility; it does not offer pooled databases like elastic pools.
D
Database per server (hyperscale)
Why wrong: Incorrect. Hyperscale is for single databases that need massive scalability and fast recovery, not for pooling multiple databases.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Elastic pool
Elastic pools are designed for exactly this scenario: multiple databases with low to moderate usage and varying workload patterns. They allow databases to share a fixed pool of resources (eDTUs or vCores) while using built-in resource governance to prevent any single database from starving others, thus optimizing cost and performance.
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.
✓
Elastic pool
Why this is correct
Correct. Elastic pools provide a set of shared resources for multiple databases, optimizing cost and performance for databases with varying load patterns.
Related concept
Read the scenario before looking for a memorised answer.
✗
Single database (DTU model)
Why it's wrong here
Incorrect. Single databases are isolated and pay for their own resources, which would be more expensive for several small databases compared to an elastic pool.
✗
Managed Instance
Why it's wrong here
Incorrect. Managed Instance is designed for lift-and-shift scenarios with near 100% SQL Server compatibility; it does not offer pooled databases like elastic pools.
✗
Database per server (hyperscale)
Why it's wrong here
Incorrect. Hyperscale is for single databases that need massive scalability and fast recovery, not for pooling multiple databases.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose Single database (DTU model) thinking it is the simplest option, but they overlook the cost and resource-sharing benefits of elastic pools for consolidating multiple low-usage databases with varying workloads.
Trap categories for this question
Scenario analysis trap
Incorrect. Managed Instance is designed for lift-and-shift scenarios with near 100% SQL Server compatibility; it does not offer pooled databases like elastic pools.
Detailed technical explanation
How to think about this question
Elastic pools use a shared resource model where the pool's total eDTUs or vCores are allocated among databases using a min/max DTU/vCore per database setting, ensuring each database gets a guaranteed minimum and can burst to a maximum without exceeding the pool's cap. Under the hood, Azure SQL Database uses a resource governor to enforce per-database limits, preventing noisy neighbor issues. In a real-world scenario, a company with 50 small CRM databases each using 5 DTUs on average could consolidate them into a 200 eDTU pool, saving costs while maintaining performance isolation.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-900 question in full detail.
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: Elastic pool — Elastic pools are designed for exactly this scenario: multiple databases with low to moderate usage and varying workload patterns. They allow databases to share a fixed pool of resources (eDTUs or vCores) while using built-in resource governance to prevent any single database from starving others, thus optimizing cost and performance.
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.
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Question Discussion
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