SAA-C03 Q565 · Networking

Question

A company is designing an advertisement distribution application to run on AWS. The company wants to deploy the application as a container to Amazon Elastic Container Service (Amazon ECS). Advertisements must be displayed to users around the world with low latency. The company needs to optimize data transfer costs. Which solution will meet these requirements?

Accepted Answer

**Answer A** meets both requirements perfectly:

1. **Low latency for global users**: Amazon CloudFront is a CDN with 450+ edge locations worldwide. Advertisement content (images, videos, HTML) is cached at edge locations closest to users, dramatically reducing latency.

2. **Optimized data transfer costs**: This is the critical differentiator. CloudFront offers **significantly lower data transfer pricing** compared to direct data transfer from AWS Regions. Data transfer from CloudFront to the internet is cheaper than data transfer from ALB/EC2 to the internet. Additionally, **data transfer from the ALB origin to CloudFront is free** (origin fetch within AWS).

3. **Single Region simplicity**: Deploying in a single Region with CloudFront in front avoids the operational complexity and cost

📖 Explanation

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📘 Key Concepts

🏗️ Architecture

⚙️ Operations

💰 Cost

🔒 Security

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