- A
Increase the log rate limit
Why wrong: Increasing the log rate limit does not reduce DTU consumption; it affects transaction log throughput.
- B
Scale up the database to a higher service tier
Why wrong: Scaling up increases cost and may not address root cause; it is better to optimize queries first.
- C
Use Query Performance Insight to identify and optimize top resource-consuming queries
Query Performance Insight helps identify and optimize top resource-consuming queries, directly reducing DTU usage.
- D
Rebuild all indexes in the database
Why wrong: Rebuilding all indexes can temporarily increase DTU consumption and may not be necessary.
Question 892 of 963
Reducing DTU Consumption in Azure SQL Database
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 are troubleshooting a performance degradation on an Azure SQL Database. You notice that the database is hitting the maximum DTU limit frequently. Which action should you take first to reduce DTU consumption?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"first"Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
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 Query Performance Insight to identify and optimize top resource-consuming queries
Query Performance Insight helps identify the top resource-consuming queries. Optimizing those queries is the most direct way to reduce DTU consumption. Option A is wrong because increasing the log rate limit does not reduce DTU consumption. Option B is wrong because scaling up increases cost and may not address the root cause. Option D is wrong because rebuilding all indexes can increase DTU temporarily.
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.
- ✗
Increase the log rate limit
Why it's wrong here
Increasing the log rate limit does not reduce DTU consumption; it affects transaction log throughput.
- ✗
Scale up the database to a higher service tier
Why it's wrong here
Scaling up increases cost and may not address root cause; it is better to optimize queries first.
- ✓
Use Query Performance Insight to identify and optimize top resource-consuming queries
Why this is correct
Query Performance Insight helps identify and optimize top resource-consuming queries, directly reducing DTU usage.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Rebuild all indexes in the database
Why it's wrong here
Rebuilding all indexes can temporarily increase DTU consumption and may not be necessary.
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
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
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.
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Monitor, configure, and optimize database resources — study guide chapter
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FAQ
Questions learners often ask
What does this DP-300 question test?
Monitor, configure, and optimize database resources — This question tests Monitor, configure, and optimize database resources — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Query Performance Insight to identify and optimize top resource-consuming queries — Query Performance Insight helps identify the top resource-consuming queries. Optimizing those queries is the most direct way to reduce DTU consumption. Option A is wrong because increasing the log rate limit does not reduce DTU consumption. Option B is wrong because scaling up increases cost and may not address the root cause. Option D is wrong because rebuilding all indexes can increase DTU temporarily.
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.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 21, 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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