Question 1,394 of 1,663
DBS-C01 Monitoring and Troubleshooting Practice Question
A database administrator notices that an Amazon RDS for MySQL DB instance's CPU utilization is consistently above 90% during peak hours. Which initial troubleshooting step should the administrator take?
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 queries consuming CPU.
Amazon RDS Performance Insights provides detailed database performance metrics and helps identify the specific queries contributing to high CPU utilization, enabling targeted optimization. Option A is incorrect because increasing instance size is a reactive scaling action rather than a diagnostic step; it does not identify the root cause. Option C is incorrect because Multi-AZ deployment is designed for high availability and failover, not for distributing load or improving performance. Option D is incorrect because disabling slow query logging removes valuable diagnostic information that could help identify problematic queries.
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 DB instance size to handle the load.
Why it's wrong here
Increasing instance size is a scaling action, not a troubleshooting step to identify the cause.
- ✓
Use Amazon RDS Performance Insights to identify the queries consuming CPU.
Why this is correct
Performance Insights helps pinpoint the source of high CPU usage.
- ✗
Enable Multi-AZ deployment to distribute the load.
Why it's wrong here
Multi-AZ provides failover support, not performance distribution.
- ✗
Disable slow query logging to reduce CPU overhead.
Why it's wrong here
Disabling logs removes diagnostic information and does not solve the root cause.
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Last reviewed: Jun 20, 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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