Quick Answer
The answer is Amazon RDS Performance Insights, the correct service for identifying and analyzing slow queries in RDS MySQL. Performance Insights works by continuously capturing database load and breaking it down into wait events, SQL queries, and host-level metrics, allowing you to pinpoint exactly which queries are causing performance degradation. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this question tests your understanding of native RDS monitoring tools versus third-party or manual logging solutions—a common trap is choosing slow query logs or CloudWatch Logs, which require additional setup and lack the real-time, visual load breakdown that Performance Insights provides. Remember that Performance Insights uses the database’s performance schema to surface the top SQL statements and their contribution to overall DB load, making it the direct, integrated answer for slow query analysis. A useful memory tip: think “PI = Performance Insight = Pinpoint the SQL culprit instantly.”
This DOP-C02 practice question tests your understanding of monitoring and logging. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
A company uses Amazon RDS for MySQL. The database performance has degraded, and the engineer suspects that slow queries are the cause. Which service should be used to identify and analyze the slow queries?
Amazon RDS Performance Insights
Performance Insights provides a detailed view of database load and slow queries.
Amazon CloudWatch Metrics
Why wrong: CloudWatch Metrics provide aggregate performance metrics, not per-query details.
Amazon CloudWatch Logs
Why wrong: CloudWatch Logs can store slow query logs if enabled, but Performance Insights is easier.
AWS X-Ray
Why wrong: X-Ray traces application requests, not database queries.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Amazon RDS Performance Insights
Amazon RDS Performance Insights is the correct service because it provides a database-specific performance schema that visualizes database load and identifies the exact SQL queries causing performance degradation. It integrates directly with RDS for MySQL, offering a dashboard that breaks down wait events, SQL text, and host-level metrics, making it the ideal tool for analyzing slow queries.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Amazon RDS Performance Insights
Why this is correct
Performance Insights provides a detailed view of database load and slow queries.
Related concept
Read the scenario before looking for a memorised answer.
Amazon CloudWatch Metrics
Why it's wrong here
CloudWatch Metrics provide aggregate performance metrics, not per-query details.
Amazon CloudWatch Logs
Why it's wrong here
CloudWatch Logs can store slow query logs if enabled, but Performance Insights is easier.
AWS X-Ray
Why it's wrong here
X-Ray traces application requests, not database queries.
Common exam traps
The trap here is that candidates may confuse CloudWatch Logs (which can store slow query logs) with a native analysis tool, overlooking that Performance Insights provides immediate, built-in visualization and query-level analysis without requiring custom log parsing.
Detailed technical explanation
Performance Insights uses the database engine's internal performance schema (e.g., MySQL's performance_schema) to collect wait event data and SQL digest statistics, presenting them in a load-by-wait chart. It can pinpoint the exact SQL queries causing high database load by grouping them into 'top SQL' with metrics like average latency and calls per second, which is critical for tuning queries in production environments where slow queries degrade application responsiveness.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Monitoring and Logging — This question tests Monitoring and Logging — Read the scenario before looking for a memorised answer..
The correct answer is: Amazon RDS Performance Insights — Amazon RDS Performance Insights is the correct service because it provides a database-specific performance schema that visualizes database load and identifies the exact SQL queries causing performance degradation. It integrates directly with RDS for MySQL, offering a dashboard that breaks down wait events, SQL text, and host-level metrics, making it the ideal tool for analyzing slow queries.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This DOP-C02 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 DOP-C02 exam.
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