- A
Use CloudFront with API Gateway as an origin.
This allows API calls to be served from edge locations.
- B
Use AWS Global Accelerator for the S3 website.
Why wrong: Global Accelerator is for TCP/UDP traffic, not static websites.
- C
Use Lambda@Edge to process API calls at the edge.
Why wrong: Lambda@Edge runs code at edge, but the API still needs to be served from API Gateway.
- D
Use Amazon CloudFront for both the S3 website and the API Gateway endpoint.
CloudFront provides edge caching and reduces latency globally.
- E
Enable S3 Transfer Acceleration on the bucket.
Why wrong: Transfer Acceleration speeds up uploads, not general API calls.
Question 161 of 1,746
SAP-C02 Design for New Solutions Practice Question
This SAP-C02 practice question tests your understanding of design for new solutions. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is hosting a static website on Amazon S3. The website uses JavaScript to make API calls to a backend API hosted on Amazon API Gateway. The company wants to reduce latency for users worldwide. Which combination of AWS services should the solutions architect use? (Choose two.)
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
✓
Use CloudFront with API Gateway as an origin.
Option A is correct because Amazon CloudFront can use API Gateway as a custom origin, allowing API requests to be served from edge locations closer to users, which reduces latency. This integration caches API responses at the edge when possible and terminates the user's TCP connection at the edge, improving performance for global users.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use CloudFront with API Gateway as an origin.
Why this is correct
This allows API calls to be served from edge locations.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use AWS Global Accelerator for the S3 website.
- ✗
Use Lambda@Edge to process API calls at the edge.
Why it's wrong here
Lambda@Edge runs code at edge, but the API still needs to be served from API Gateway.
- ✓
Use Amazon CloudFront for both the S3 website and the API Gateway endpoint.
Why this is correct
CloudFront provides edge caching and reduces latency globally.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable S3 Transfer Acceleration on the bucket.
Why it's wrong here
Transfer Acceleration speeds up uploads, not general API calls.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think Lambda@Edge can directly process API calls to API Gateway, but Lambda@Edge only intercepts CloudFront events and cannot replace the API Gateway origin or handle backend API logic.
Detailed technical explanation
How to think about this question
When CloudFront is used as a content delivery network (CDN) for both the S3 website and the API Gateway endpoint, it leverages the same edge infrastructure to terminate TCP connections and serve cached content, reducing round-trip time. For API Gateway, CloudFront can cache responses based on query strings or headers, and it supports custom error responses and origin failover, which is critical for global resilience. The combination of CloudFront with S3 and API Gateway is a common pattern for serverless web applications requiring low latency worldwide.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Visual reference
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 |
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Design for New Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Design for New Solutions — This question tests Design for New Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use CloudFront with API Gateway as an origin. — Option A is correct because Amazon CloudFront can use API Gateway as a custom origin, allowing API requests to be served from edge locations closer to users, which reduces latency. This integration caches API responses at the edge when possible and terminates the user's TCP connection at the edge, improving performance for global users.
What should I do if I get this SAP-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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