- A
Use CloudFront Origin Access Control (OAC) and update the bucket policy to only allow access from the CloudFront distribution.
Restricts direct access.
- B
Set S3 Object Ownership to BucketOwnerPreferred.
Why wrong: Irrelevant.
- C
Configure the S3 bucket policy to allow public read access.
Why wrong: Allows direct access.
- D
Generate CloudFront key pairs and require signed URLs for all content.
Why wrong: Does not prevent direct S3 access.
Question 708 of 1,746
CloudFront Origin Access Control — Restrict S3 Bucket Access | AWS Solutions Architect Professional Explained
This SAP-C02 practice question tests your understanding of continuous improvement for existing 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 using Amazon CloudFront to deliver static content from an S3 bucket. The company wants to ensure that users can only access content through CloudFront and not directly from the S3 bucket. What should the company do?
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 Origin Access Control (OAC) and update the bucket policy to only allow access from the CloudFront distribution.
Option A is correct. Using CloudFront Origin Access Control (OAC) restricts access to the S3 bucket so that only the CloudFront distribution can access objects. The bucket policy must be updated to grant CloudFront access. Option B is incorrect because S3 Object Ownership does not restrict access. Option C is incorrect because allowing public read access would enable direct S3 access. Option D is incorrect because CloudFront key pairs and signed URLs control access through CloudFront but do not prevent direct S3 bucket access.
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 Origin Access Control (OAC) and update the bucket policy to only allow access from the CloudFront distribution.
Why this is correct
Restricts direct access.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Set S3 Object Ownership to BucketOwnerPreferred.
Why it's wrong here
Irrelevant.
- ✗
Configure the S3 bucket policy to allow public read access.
Why it's wrong here
Allows direct access.
- ✗
Generate CloudFront key pairs and require signed URLs for all content.
Why it's wrong here
Does not prevent direct S3 access.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
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 SAP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Continuous Improvement for Existing Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Continuous Improvement for Existing Solutions — This question tests Continuous Improvement for Existing Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use CloudFront Origin Access Control (OAC) and update the bucket policy to only allow access from the CloudFront distribution. — Option A is correct. Using CloudFront Origin Access Control (OAC) restricts access to the S3 bucket so that only the CloudFront distribution can access objects. The bucket policy must be updated to grant CloudFront access. Option B is incorrect because S3 Object Ownership does not restrict access. Option C is incorrect because allowing public read access would enable direct S3 access. Option D is incorrect because CloudFront key pairs and signed URLs control access through CloudFront but do not prevent direct S3 bucket access.
What should I do if I get this SAP-C02 question wrong?
Identify which SAP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on SAP-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company uses Amazon CloudFront to deliver static content from an S3 bucket. They want to restrict access so that only CloudFront can access the S3 bucket. What configuration should they use?
easy- A.Set the S3 bucket policy to allow access only from CloudFront's public IP ranges.
- ✓ B.Create an origin access identity (OAI) and grant it read access to the S3 bucket.
- C.Attach an IAM role to CloudFront distribution.
- D.Configure CloudFront signed URLs.
Why B: The correct answer is B: Create an origin access identity (OAI) and grant it read access to the S3 bucket. An OAI is a special CloudFront user that allows CloudFront to access private S3 bucket content securely. Option A is incorrect because CloudFront does not have static public IP ranges; it uses a large dynamic range. Option C is incorrect because IAM roles are not used directly for CloudFront to S3 access; OAI is the standard method. Option D is incorrect because signed URLs control end-user access, not origin access.
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Last reviewed: Jun 20, 2026
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.
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