DBS-C01 Management and Operations Practice Question
A company is experiencing increased latency on their Amazon RDS for PostgreSQL instance. The application team reports that queries are taking longer than usual. The database metrics show high CPU utilization and a spike in write operations. Which initial step should the database specialist take to diagnose the issue?
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
✓
Enable Performance Insights on the DB instance to analyze the workload.
Enabling Performance Insights provides a detailed performance analysis and helps identify the root cause of the latency. It is the recommended first step for diagnosing database performance issues.
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 Performance Insights on the DB instance to analyze the workload.
Why this is correct
Performance Insights provides a comprehensive view of database performance and helps pinpoint the bottleneck.
- ✗
Create a read replica to offload read traffic from the primary instance.
Why it's wrong here
Read replicas help with read-heavy workloads, but the issue is write-related, so this may not address the root cause.
- ✗
Modify the DB instance to a larger instance class to handle the load.
Why it's wrong here
Scaling may be needed, but it should be based on diagnostic data, not as the first step.
- ✗
Enable enhanced monitoring to get OS-level metrics of the DB instance.
Why it's wrong here
Enhanced monitoring provides OS metrics, but Performance Insights provides query-level details that are more directly useful for diagnosis.
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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.