Question 48 of 1,663
DBS-C01 Management and Operations Practice Question
A database specialist is troubleshooting a performance issue on an Amazon RDS for MySQL DB instance. The CPU utilization is consistently above 90%, but the IOPS and memory metrics are well within limits. Which tool should the specialist use to identify the root cause?
⚠ Common exam trap
Many exam-takers confuse Enhanced Monitoring (OS-level metrics) with Performance Insights (database-level query analysis), assuming OS metrics alone can identify the specific SQL causing high CPU, when in fact they only show the symptom, not the cause.
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 Amazon RDS Performance Insights to identify the top SQL queries by CPU usage.
Amazon RDS Performance Insights provides a database performance tuning and monitoring feature that visualizes database load and helps identify the top SQL queries consuming the most CPU. Since the CPU is consistently above 90% while IOPS and memory are normal, Performance Insights can directly correlate high CPU usage to specific SQL statements, enabling the specialist to pinpoint the root cause efficiently.
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 AWS CloudTrail to log database queries.
Why it's wrong here
CloudTrail logs API calls, not SQL queries.
- ✗
Use Amazon RDS Enhanced Monitoring to view OS-level metrics.
Why it's wrong here
Enhanced Monitoring does not show per-query CPU usage.
- ✗
Check RDS events in the AWS Management Console.
Why it's wrong here
RDS events do not provide performance details.
- ✓
Use Amazon RDS Performance Insights to identify the top SQL queries by CPU usage.
Why this is correct
Performance Insights provides query-level performance data.
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Last reviewed: Jul 4, 2026
This DBS-C01 practice question is part of Courseiva's free Amazon Web Services 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 DBS-C01 exam.
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