SAA-C03 Q483 · Cost

Question

A company uses an Amazon RDS MySQL database to store data for several applications. The company wants to understand use patterns for the database so the company can identify opportunities to optimize costs. A solutions architect needs to analyze the RDS DB instance to identify right-sizing opportuni-ties. Which solution will meet these requirements with the LEAST effort?

Accepted Answer

**Option B: Enable Performance Insights for the RDS DB instance** is correct for several reasons:

1. **Built-in RDS feature**: Performance Insights is a native RDS monitoring feature that can be enabled with a single click — no additional infrastructure, agents, or complex configuration required.

2. **Direct resource utilization visibility**: Performance Insights provides detailed metrics including CPU utilization, database load (Active Sessions), wait events, and SQL-level statistics. This is exactly what you need for right-sizing.

3. **Right-sizing based on CPU utilization**: The question asks about identifying right-sizing opportunities. **Maximum CPU utilization** is one of the most direct and actionable metrics for determining if an instance is over-provisioned (consistently low CP

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📘 Key Concepts

🏗️ Architecture

⚙️ Operations

💰 Cost

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