DP-300 Practice Question: Monitor, configure, and optimize database resources
Which THREE actions can you take to optimize query performance in Azure SQL Database using Intelligent Query Processing?
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
✓
Enable adaptive joins
Adaptive joins (A), interleaved execution for multi-statement table-valued functions (B), and approximate count distinct (E) are all features of Intelligent Query Processing (IQP) in Azure SQL Database. They improve query performance by dynamically adjusting join strategies, avoiding suboptimal plans for MSTVFs, and efficiently handling COUNT(DISTINCT) queries. Query Store (C) is a monitoring and tuning feature but it is not part of IQP. Columnstore indexes (D) are a storage and indexing technique, not part of IQP.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enable adaptive joins
Why this is correct
Part of IQP for dynamic join strategy selection.
- ✓
Enable interleaved execution for MSTVFs
Why this is correct
Part of IQP for better plan quality.
- ✗
Enable Query Store
Why it's wrong here
General monitoring feature, not IQP.
- ✗
Enable columnstore indexes
Why it's wrong here
General performance feature, not part of IQP.
- ✓
Use approximate count distinct
Why this is correct
Part of IQP for faster distinct counts.
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.
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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.