DP-300 Practice Question: Monitor, configure, and optimize database resources
Your Azure SQL Database is experiencing high DTU consumption. You need to identify the top resource-consuming queries. 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
✓
Use the Query Store reports in the Azure portal
Query Store in Azure SQL Database provides built-in reports to identify top resource-consuming queries by CPU, IO, and duration, making it the easiest and most direct method. Option B (SQL Server Profiler) is not supported in Azure SQL Database. Option C (Extended Events) is more complex and not the simplest approach for this task. Option D (sys.dm_exec_query_stats) can be used but lacks persistent historical data and is more effort than using Query Store reports.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use the Query Store reports in the Azure portal
Why this is correct
Built-in, persistent, and easy to use.
- ✗
Use SQL Server Profiler
Why it's wrong here
Not supported in Azure SQL Database.
- ✗
Create an Extended Events session to capture query events
Why it's wrong here
Overkill for this task.
- ✗
Query sys.dm_exec_query_stats
Why it's wrong here
Works but less persistent than Query Store.
Go deeper
Related to this question
Learn chapter
Overview of Azure Data Platform Options
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.
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.
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