SAP-C02 Continuous Improvement for Existing Solutions Practice Question
A company has an Amazon RDS for PostgreSQL database that is experiencing high CPU utilization due to a large number of read queries. They need to offload read traffic and improve performance. Which TWO actions should they take? (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
✓
Create one or more read replicas in the same Region.
Read replicas offload read queries from the primary database, reducing CPU utilization. Option E is correct because RDS Proxy manages connections, reducing overhead from a large number of read queries. Option A is wrong: Multi-AZ provides high availability, not read scaling. Option C is wrong: increasing instance size may help but does not specifically offload read traffic and is often more expensive than read replicas. Option D is wrong: ElastiCache caches query results but does not offload read queries from the database directly.
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 Multi-AZ deployment for the database.
Why it's wrong here
Multi-AZ provides failover, not read scaling.
- ✓
Create one or more read replicas in the same Region.
Why this is correct
Read replicas serve read traffic, reducing load on the primary.
- ✗
Increase the instance size of the primary database.
Why it's wrong here
Scaling up is less cost-effective than using read replicas.
- ✗
Use Amazon ElastiCache to cache query results.
Why it's wrong here
ElastiCache caches data but is not a direct offload for database queries.
- ✓
Implement an RDS Proxy to manage connections.
Why this is correct
RDS Proxy reduces CPU overhead from connection management.
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This SAP-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 SAP-C02 exam.