This DP-300 practice question tests your understanding of plan and implement data platform resources. 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.
You are configuring Azure SQL Database for an e-commerce application that experiences variable traffic. You need to ensure that the database can automatically scale resources based on demand without manual intervention. The solution must also support scaling to zero compute when not in use to save costs. Which Azure SQL Database offering should you use?
Azure SQL Database serverless.
Serverless auto-scales and pauses to zero compute during inactivity.
Azure SQL Database elastic pool.
Why wrong: Elastic pool scales but does not pause to zero.
Azure SQL Database Hyperscale.
Why wrong: Hyperscale does not pause automatically.
Azure SQL Database Business Critical tier.
Why wrong: Business Critical does not support serverless.
Answer choices
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 serverless.
Azure SQL Database serverless is the correct choice because it automatically scales compute resources based on demand and supports pausing the database when idle, effectively scaling to zero compute to save costs. This aligns perfectly with the requirements of variable traffic and cost optimization without manual intervention.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Azure SQL Database serverless.
Why this is correct
Serverless auto-scales and pauses to zero compute during inactivity.
Related concept
Read the scenario before looking for a memorised answer.
Azure SQL Database elastic pool.
Why it's wrong here
Elastic pool scales but does not pause to zero.
Azure SQL Database Hyperscale.
Why it's wrong here
Hyperscale does not pause automatically.
Azure SQL Database Business Critical tier.
Why it's wrong here
Business Critical does not support serverless.
Common exam traps
The trap here is that candidates may confuse the auto-scaling of serverless with the resource pooling of elastic pools, or assume Hyperscale's high performance includes cost-saving idle scaling, but only serverless offers the specific 'scale to zero' capability.
Detailed technical explanation
Under the hood, Azure SQL Database serverless uses a compute billing model based on vCore usage per second and includes an auto-pause delay setting (configurable from 1 minute to 7 days). When idle, the database transitions to a paused state where compute costs are zero, but storage and backup costs still apply. This is ideal for development, test, or intermittent-use applications, but note that the first connection after pause incurs a resume delay of 30-60 seconds.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
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FAQ
Plan and implement data platform resources — This question tests Plan and implement data platform resources — Read the scenario before looking for a memorised answer..
The correct answer is: Azure SQL Database serverless. — Azure SQL Database serverless is the correct choice because it automatically scales compute resources based on demand and supports pausing the database when idle, effectively scaling to zero compute to save costs. This aligns perfectly with the requirements of variable traffic and cost optimization without manual intervention.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This DP-300 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-300 exam.
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