DBS-C01 Monitoring and Troubleshooting Practice Question
A company is using Amazon RDS for MySQL and needs to monitor for slow queries. Which TWO AWS services can be used to capture and analyze slow query logs? (Choose TWO.)
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
✓
Amazon RDS Performance Insights
Amazon RDS Performance Insights (Option B) provides database performance analysis and can help identify slow queries by visualizing database load. Amazon CloudWatch Logs (Option E) can ingest and analyze RDS slow query logs by streaming them from RDS. Amazon S3 (Option A) is an object storage service, not a monitoring or analysis service. AWS Config (Option C) is for recording configuration changes, not database logs. AWS CloudTrail (Option D) records API calls for governance, not database-level query logs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon S3
Why it's wrong here
S3 is object storage, not a monitoring service.
- ✓
Amazon RDS Performance Insights
Why this is correct
Performance Insights can help identify slow queries by analyzing database load.
- ✗
AWS Config
Why it's wrong here
Config tracks configuration changes, not database performance.
- ✗
AWS CloudTrail
Why it's wrong here
CloudTrail records API activity, not database logs.
- ✓
Amazon CloudWatch Logs
Why this is correct
RDS can publish logs to CloudWatch Logs for analysis.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.