Question 156 of 982

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 SaaS company hosts a multi-tenant application. Each tenant has a separate Azure SQL Database. The databases are small (1-3 GB) and their workloads vary significantly over time, with some tenants active during business hours and others at night. The company wants to maximize resource utilization and minimize costs by pooling compute resources across tenants while maintaining predictable performance per database. 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.

Question 1mediummultiple choice
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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 (tenants) to share a fixed pool of compute and storage resources, enabling cost efficiency through resource pooling while providing predictable performance via per-database resource limits (min/max DTU or vCore). This matches the scenario of small databases with variable, non-overlapping workloads across tenants.

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 Single Database

    Why it's wrong here

    Single database provisions dedicated resources per database. With many small databases and variable loads, this would lead to unused reserved capacity and higher costs.

  • Azure SQL Database Elastic Pool

    Why this is correct

    An elastic pool allows multiple databases to share a pool of resources. Databases automatically use resources as needed, maximizing utilization and lowering cost while providing predictable performance per database via settings like min and max vCores.

    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 Managed Instance

    Why it's wrong here

    Managed Instance is a fully managed SQL Server instance with many instance-level features but is designed for larger, more complex databases or lift-and-shift scenarios. It does not offer the same granular resource sharing as elastic pools.

  • SQL Server on Azure Virtual Machine

    Why it's wrong here

    Running SQL Server on a VM provides the most flexibility but requires managing the OS and SQL Server. It does not natively support resource pooling across multiple tenant databases without additional configuration.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates may choose Single Database (Option A) thinking it offers the best isolation, but they overlook the cost and resource utilization benefits of Elastic Pool for variable, non-overlapping workloads across many small databases.

Trap categories for this question

  • Scenario analysis trap

    Managed Instance is a fully managed SQL Server instance with many instance-level features but is designed for larger, more complex databases or lift-and-shift scenarios. It does not offer the same granular resource sharing as 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, with per-database settings like 'min DTU' (guarantee) and 'max DTU' (cap) to ensure predictable performance. Under the hood, Azure SQL Database uses a resource governor to enforce these limits, preventing noisy-neighbor issues even when workloads spike. In real-world scenarios, this is ideal for SaaS apps with hundreds of tenants where usage patterns are complementary, such as retail tenants active during day shifts and hospitality tenants active at night.

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 (tenants) to share a fixed pool of compute and storage resources, enabling cost efficiency through resource pooling while providing predictable performance via per-database resource limits (min/max DTU or vCore). This matches the scenario of small databases with variable, non-overlapping workloads across tenants.

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

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