SAA-C03 Q356 · Networking

Question

A company hosts an application on AWS that gives users the ability to download photos. The company stores all photos in an Amazon S3 bucket that is located in the us-east-1 Region. The company wants to provide the photo download application to global customers with low latency. Which solution will meet these requirements?

Accepted Answer

**Option B: CloudFront distribution in front of the S3 bucket** is correct because:

1. **Requirement: Global customers** → CloudFront has 400+ edge locations worldwide, caching content close to end users regardless of their geographic location.

2. **Requirement: Low latency** → When a user in Tokyo requests a photo, CloudFront serves it from the nearest edge location. The first request fetches from the S3 origin in us-east-1, but subsequent requests for the same object are served from the edge cache — dramatically reducing latency.

3. **Requirement: Photo downloads (static content)** → CloudFront excels at caching and delivering static content like images. Photos are immutable or rarely changed, making them ideal CDN candidates with high cache hit ratios.

4. **Single S3 bucket remains

📖 Explanation

✅ Correct Answer

❌ Wrong Answers

📘 Key Concepts

🏗️ Architecture

⚙️ Operations

💰 Cost

🔒 Security

🎯 Exam Tips