The correct answer is to block all public access at the bucket level and use an S3 VPC Gateway Endpoint. Blocking public access at the bucket or account level acts as a hard deny, overriding any bucket policies or object ACLs that might otherwise allow public internet access, while a VPC Gateway Endpoint restricts traffic to only originate from within your specified VPC, ensuring data never traverses the public internet. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this pairing tests your understanding of defense in depth for S3 security—a common trap is confusing encryption or CloudFront with OAI as a substitute for blocking public access, but encryption protects data at rest, not access, and CloudFront with OAI still requires the bucket to be private. Remember the mnemonic: "Block and Lock"—block public access, then lock traffic to your VPC.
SOA-C02 Security and Compliance Practice Question
This SOA-C02 practice question tests your understanding of security and compliance. 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 designing a secure application architecture. They need to ensure that sensitive data stored in Amazon S3 is not accessible from the public internet. Which TWO actions should be taken? (Choose TWO.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use an S3 VPC Gateway Endpoint to restrict access to the VPC.
Option B is correct because blocking public access at the bucket or account level prevents public access. Option C is correct because using S3 VPC Gateway Endpoint ensures access is only from within the VPC. Option A is wrong because encrypting data does not prevent public access. Option D is wrong because CloudFront with OAI can provide secure access but does not by itself block public internet access if the bucket is public. Option E is wrong because MFA Delete is for deletion protection, not access control.
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 an S3 VPC Gateway Endpoint to restrict access to the VPC.
Why this is correct
Restricts access to within the VPC.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable default encryption on the bucket.
Why it's wrong here
Encryption does not restrict access.
✗
Enable MFA Delete on the bucket.
Why it's wrong here
MFA Delete protects against accidental deletion, not access.
✗
Use Amazon CloudFront with Origin Access Identity (OAI).
Why it's wrong here
Does not block public internet if bucket policy allows it.
✓
Block all public access at the bucket level.
Why this is correct
Prevents public access.
Related concept
Read the scenario before looking for a memorised answer.
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.
What to study next
Got this wrong? Here's your next step.
Identify which SOA-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.
Security and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use an S3 VPC Gateway Endpoint to restrict access to the VPC. — Option B is correct because blocking public access at the bucket or account level prevents public access. Option C is correct because using S3 VPC Gateway Endpoint ensures access is only from within the VPC. Option A is wrong because encrypting data does not prevent public access. Option D is wrong because CloudFront with OAI can provide secure access but does not by itself block public internet access if the bucket is public. Option E is wrong because MFA Delete is for deletion protection, not access control.
What should I do if I get this SOA-C02 question wrong?
Identify which SOA-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.
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This SOA-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 SOA-C02 exam.
Question Discussion
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