DP-300 Automatic tuning Practice Question
You have an Azure SQL Database that uses automatic tuning. Which TWO benefits does automatic tuning provide?
⚠ Common exam trap
Automatic tuning in Azure SQL Database includes only index creation and plan regression correction. It does not include auto-scaling, read replicas, or statistics updates.
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
✓
Automatically identify and correct query plan regressions
Options B and E are correct. Automatic tuning can identify and correct query plan regressions (B) and automatically create missing indexes (E). Option A is wrong because automatic tuning does not automatically scale the service tier; that's auto-scale. Option C is wrong because automatic tuning does not automatically create read replicas. Option D is wrong because automatic tuning does not automatically update statistics.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Automatically scale up the database service tier
Why it's wrong here
Not part of automatic tuning.
- ✓
Automatically identify and correct query plan regressions
Why this is correct
Plan correction is a key feature.
- ✗
Automatically create read replicas
Why it's wrong here
Not part of automatic tuning.
- ✗
Automatically update statistics
Why it's wrong here
Statistics updates are separate.
- ✓
Automatically create missing indexes
Why this is correct
Index creation is a built-in tuning action.
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.
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