Quick Answer
The answer is Query Store, which is the correct configuration to enable for logging all queries for performance analysis in Azure SQL Database. Query Store works by continuously capturing a history of query execution plans, runtime statistics, and wait statistics directly within the database, allowing you to track performance regressions and troubleshoot query-level issues without needing external storage or additional tools. On the Microsoft Azure Database Administrator Associate DP-300 exam, this concept tests your understanding of built-in monitoring features versus external solutions like Azure Monitor or SQL Server Profiler, which are common traps because they require extra setup or are not designed for persistent, automatic query logging. Remember that Query Store is the default performance analysis tool for Azure SQL Database, acting as a flight data recorder for queries. A helpful memory tip is to think of Query Store as a “black box” for your database—it logs everything automatically so you can replay and analyze performance after the fact.
This DP-300 practice question tests your understanding of monitor, configure, and optimize database resources. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 deploy a new Azure SQL Database and need to ensure that all queries are logged for performance analysis. Which configuration should you enable?
Data classification
Why wrong: Data classification labels sensitive columns.
Server-level audit
Why wrong: Audit logs actions but not query text.
Diagnostic settings for SQLInsights
Why wrong: Diagnostic settings send metric data, not query text.
Query Store
Query Store captures query runtime statistics and plans.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Query Store
Query Store captures a history of query execution plans, runtime statistics, and wait statistics, enabling detailed performance analysis and troubleshooting. It is the correct choice because it is specifically designed to log query-level performance data for Azure SQL Database without requiring external storage or additional configuration.
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.
Data classification
Why it's wrong here
Data classification labels sensitive columns.
Server-level audit
Why it's wrong here
Audit logs actions but not query text.
Diagnostic settings for SQLInsights
Why it's wrong here
Diagnostic settings send metric data, not query text.
Query Store
Why this is correct
Query Store captures query runtime statistics and plans.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse server-level audit or diagnostic settings with query-level logging, but Query Store is the only feature that natively logs query execution plans and runtime statistics for performance analysis in Azure SQL Database.
Detailed technical explanation
Query Store operates by persisting query plans and runtime metrics in internal system tables within the user database, using a configurable data capture mode (e.g., ALL, AUTO, or CUSTOM). It also provides a built-in 'Forced Plan' feature to prevent plan regressions, making it invaluable for production environments where query performance must be stable and predictable.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
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FAQ
Monitor, configure, and optimize database resources — This question tests Monitor, configure, and optimize database resources — Read the scenario before looking for a memorised answer..
The correct answer is: Query Store — Query Store captures a history of query execution plans, runtime statistics, and wait statistics, enabling detailed performance analysis and troubleshooting. It is the correct choice because it is specifically designed to log query-level performance data for Azure SQL Database without requiring external storage or additional configuration.
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 11, 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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