DP-300 Practice Question: Monitor, configure, and optimize database resources
Your organization uses Azure SQL Database with elastic pools. One of the databases in the pool, 'OrdersDB', consistently uses more eDTUs than other databases, causing performance degradation for other databases. You need to isolate the resource usage of 'OrdersDB' to prevent it from affecting others. The solution should minimize cost and administrative overhead. What should you do?
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
✓
Move 'OrdersDB' to a higher service tier, such as a standalone database with a higher DTU limit.
Moving 'OrdersDB' to a standalone database with a higher DTU limit isolates its resource usage, preventing it from affecting other databases in the elastic pool. This approach minimizes administrative overhead as it's a straightforward configuration change. Option A is incorrect because purchasing reserved capacity is a billing benefit, not a resource isolation mechanism. Option B is incorrect because Query Store can identify high-usage queries but cannot limit resource consumption. Option D is incorrect because increasing the pool's eDTU limit would increase costs, and the high-usage database could still consume resources and affect others within the pool.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Purchase reserved capacity for the pool to reduce costs.
Why it's wrong here
Reserved capacity does not address resource contention.
- ✗
Use Query Store to identify and kill the high-usage queries.
Why it's wrong here
Query Store is for monitoring, not for automatically killing queries; also manual intervention is not sustainable.
- ✓
Move 'OrdersDB' to a higher service tier, such as a standalone database with a higher DTU limit.
Why this is correct
Isolating the database ensures other databases are not affected, and you can choose appropriate resources for 'OrdersDB'.
- ✗
Increase the eDTU limit of the elastic pool to accommodate the high usage.
Why it's wrong here
This increases cost and does not isolate 'OrdersDB'; other databases may still be affected.
Go deeper
Related to this question
Learn chapter
Overview of Azure Data Platform Options
Key term
Query Store
Query Store is a built-in SQL Server feature that captures and stores a history of query execution plans and performance data for easy monitoring and troubleshooting.
Key term
Azure SQL Performance Tuning
Azure SQL Performance Tuning is the process of optimizing the speed and efficiency of queries and database operations in Microsoft Azure SQL Database or SQL Managed Instance to reduce latency and improve throughput.
About these practice questions
This DP-300 question is part of Courseiva's 906-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.