SAA-C03 Q190 · Database

Question

A company is planning to deploy its application on an Amazon Aurora PostgreSQL Serverless v2 cluster. The application will receive large amounts of traffic. The company wants to optimize the storage performance of the cluster as the load on the application increases. Which solution will meet these requirements MOST cost-effectively?

Accepted Answer

**Answer D: Aurora I/O-Optimized storage configuration** is correct because:

1. **Requirement: Large amounts of traffic** → This implies heavy read/write I/O operations against the database. Aurora I/O-Optimized eliminates per-I/O charges entirely, replacing them with a higher compute cost (~30% more for instances).

2. **Requirement: Optimize storage performance** → Aurora I/O-Optimized delivers improved performance for I/O-intensive workloads by removing I/O cost variability and providing predictable pricing.

3. **Requirement: Cost-effective as load increases** → This is the critical point. With Aurora Standard, you pay per million I/O requests. As traffic grows, I/O costs scale linearly and can become the dominant cost component (sometimes 25-40%+ of the total Aurora bill). Aurora I/O

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📘 Key Concepts

🏗️ Architecture

⚙️ Operations

💰 Cost

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