The correct answer is to enable automatic index tuning in Azure SQL Database with the desired fragmentation thresholds. This approach is correct because Azure SQL Database’s built-in automatic index tuning can be configured to automatically perform index rebuilds and reorganizations based on specific fragmentation thresholds—such as 30% for rebuilds and 10% for reorganizations—without requiring any custom scripting or external job scheduling. On the Microsoft Azure Database Administrator Associate DP-300 exam, this question tests your understanding of managed index maintenance in PaaS environments, where the trap is to assume you need to create manual jobs or use on-premises tools like SQL Agent. Remember that in Azure SQL Database, automatic index tuning handles fragmentation thresholds natively, while options like index maintenance scripts or SQL Agent jobs are for SQL Server on VMs or on-premises. A useful memory tip: “Auto-tune for Azure, manual for metal.”
DP-300 Configure and manage automation of tasks Practice Question
This DP-300 practice question tests your understanding of configure and manage automation of tasks. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 are responsible for automating index maintenance in Azure SQL Database. You need to ensure that index rebuilds and reorganizations are performed only when fragmentation exceeds 30% and 10%, respectively, and that the job runs weekly. Which approach should you use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable automatic index tuning in Azure SQL Database with the desired fragmentation thresholds.
Option C is correct because Azure SQL Database's built-in automatic index tuning can be configured to handle index maintenance based on fragmentation thresholds without custom scripting. Options A and B manage indexes at the database level but require manual job creation. Option D is for on-premises or SQL Server on VM, not Azure SQL Database managed instance or single database.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Create a SQL Agent job using T-SQL script with sys.dm_db_index_physical_stats.
Why it's wrong here
SQL Agent is not available in Azure SQL Database single database or elastic pool.
✗
Use Elastic Database Jobs to run a script that rebuilds/reorganizes indexes.
Why it's wrong here
Elastic Database Jobs requires custom scripting and does not natively check fragmentation thresholds.
✗
Schedule a maintenance task using SQL Server Agent in a VM running SQL Server.
Why it's wrong here
This is not applicable to Azure SQL Database PaaS.
✓
Enable automatic index tuning in Azure SQL Database with the desired fragmentation thresholds.
Why this is correct
Automatic index tuning can manage index rebuilds and reorganizations based on fragmentation.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-300 question in full detail.
Identify which DP-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Configure and manage automation of tasks — This question tests Configure and manage automation of tasks — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable automatic index tuning in Azure SQL Database with the desired fragmentation thresholds. — Option C is correct because Azure SQL Database's built-in automatic index tuning can be configured to handle index maintenance based on fragmentation thresholds without custom scripting. Options A and B manage indexes at the database level but require manual job creation. Option D is for on-premises or SQL Server on VM, not Azure SQL Database managed instance or single database.
What should I do if I get this DP-300 question wrong?
Identify which DP-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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