SAP-C02 Continuous Improvement for Existing Solutions Practice Question
A company uses Amazon CloudFront to serve static content from an S3 bucket. Users in Europe report slow load times. The CloudFront distribution uses the default cache behavior. What is the MOST cost-effective improvement?
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
✓
Enable CloudFront Lambda@Edge to optimize content delivery.
Using Lambda@Edge to route users based on their geographic location can direct European users to a closer CloudFront distribution or origin, reducing latency. This approach is cost-effective as it avoids the need for additional infrastructure. Option B is incorrect because S3 Transfer Acceleration is designed for uploads, not for accelerating content delivery to end users. Option C is incorrect because geographic restrictions are for access control, not routing; they cannot route users to the nearest origin. Option D is incorrect because additional cache behaviors control caching policies, not which origin serves content; they do not inherently reduce latency.
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 CloudFront Lambda@Edge to optimize content delivery.
Why this is correct
Lambda@Edge can be used to redirect users based on location, improving latency. It is cost-effective for this use case.
- ✗
Use an S3 Transfer Acceleration to speed up content delivery.
Why it's wrong here
S3 Transfer Acceleration is for uploads, not for accelerating downloads to end users.
- ✗
Configure CloudFront with multiple origins and use geographic restrictions to route users to the nearest origin.
Why it's wrong here
Geographic restrictions only block or allow requests based on country; they do not route traffic to the nearest origin.
- ✗
Add additional cache behaviors to serve different content from different origins.
Why it's wrong here
Additional cache behaviors help with caching rules but do not affect which origin handles requests; they do not reduce latency.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.