- A
Apply a bucket policy in each account that denies PutObject without encryption.
Why wrong: Bucket policies must be applied individually to each bucket, not centrally.
- B
Attach the SCP to the root organizational unit (OU) to apply to all accounts.
Attaching SCP to root OU ensures enforcement across all accounts.
- C
Use a VPC endpoint policy to enforce encryption for all S3 access from the VPC.
Why wrong: VPC endpoint policies control access to S3 from VPC, but do not enforce bucket encryption.
- D
Use AWS Config rules to check for unencrypted S3 buckets and trigger automatic remediation.
AWS Config can identify non-compliant buckets and apply remediation.
- E
Create a service control policy (SCP) that denies s3:PutBucketPublicAccessBlock and s3:CreateBucket without encryption settings.
SCPs can prevent creation of unencrypted buckets at the organization level.
ANS-C01 Network Security, Compliance and Governance Practice Question
This ANS-C01 practice question tests your understanding of network security, compliance and governance. 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 AWS Organizations to manage multiple accounts. The security team wants to enforce that all S3 buckets across the organization are encrypted with SSE-S3 or SSE-KMS. Which THREE steps should they take to implement this policy?
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
Attach the SCP to the root organizational unit (OU) to apply to all accounts.
Options A, B, and C are correct. Creating an SCP in the root OU denies the creation of unencrypted buckets. Additionally, using AWS Config rules and remediation actions can enforce encryption on existing buckets. Option D is wrong because a bucket policy is per bucket, not organizational. Option E is wrong because a VPC endpoint policy controls access to S3 from a VPC, not encryption.
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.
- ✗
Apply a bucket policy in each account that denies PutObject without encryption.
Why it's wrong here
Bucket policies must be applied individually to each bucket, not centrally.
- ✓
Attach the SCP to the root organizational unit (OU) to apply to all accounts.
Why this is correct
Attaching SCP to root OU ensures enforcement across all accounts.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use a VPC endpoint policy to enforce encryption for all S3 access from the VPC.
Why it's wrong here
VPC endpoint policies control access to S3 from VPC, but do not enforce bucket encryption.
- ✓
Use AWS Config rules to check for unencrypted S3 buckets and trigger automatic remediation.
Why this is correct
AWS Config can identify non-compliant buckets and apply remediation.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Create a service control policy (SCP) that denies s3:PutBucketPublicAccessBlock and s3:CreateBucket without encryption settings.
Why this is correct
SCPs can prevent creation of unencrypted buckets at the organization level.
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 ANS-C01 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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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Security, Compliance and Governance — This question tests Network Security, Compliance and Governance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Attach the SCP to the root organizational unit (OU) to apply to all accounts. — Options A, B, and C are correct. Creating an SCP in the root OU denies the creation of unencrypted buckets. Additionally, using AWS Config rules and remediation actions can enforce encryption on existing buckets. Option D is wrong because a bucket policy is per bucket, not organizational. Option E is wrong because a VPC endpoint policy controls access to S3 from a VPC, not encryption.
What should I do if I get this ANS-C01 question wrong?
Identify which ANS-C01 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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Last reviewed: Jun 20, 2026
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