- A
IAM permissions boundaries
Why wrong: IAM permissions boundaries limit the maximum permissions for an IAM user or role, but they are applied per entity and can be overridden by other policies within the account. They do not provide a centralized guardrail across all member accounts in an organization.
- B
Service control policies (SCPs)
SCPs are used in AWS Organizations to centrally manage permissions across all accounts. They define the maximum available permissions and can explicitly deny actions like modifying S3 bucket policies. SCPs apply to all principals in the account and cannot be bypassed by account administrators.
- C
AWS Config conformance packs
Why wrong: AWS Config conformance packs contain a collection of AWS Config rules and remediation actions. They can evaluate resources against policies and trigger remediation, but they do not actively prevent actions; they detect and potentially fix noncompliant resources after the fact.
- D
AWS CloudTrail Insights
Why wrong: AWS CloudTrail Insights analyzes management events to detect unusual activity, such as changes to S3 bucket policies. However, it is a monitoring and logging service; it does not prevent or block API calls.
CLF-C02 Security and Compliance Practice Question
This CLF-C02 practice question tests your understanding of security and compliance. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: sCPs are applied at the AWS Organizations level (root, OU, or account).. 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 uses AWS Organizations to centrally manage multiple AWS accounts. The security team requires a mechanism to prevent any IAM user or role in any member account from modifying Amazon S3 bucket policies to grant public access. The solution must be enforced centrally and cannot be overridden by account administrators. Which AWS feature should the company use?
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
Service control policies (SCPs)
Service control policies (SCPs) are the correct choice because they allow AWS Organizations to centrally define permission guardrails that apply to all IAM users and roles across member accounts. SCPs can explicitly deny actions like s3:PutBucketPolicy to prevent any account administrator from modifying S3 bucket policies to grant public access, and these restrictions cannot be overridden by any IAM entity within the member account.
Key principle: SCPs are applied at the AWS Organizations level (root, OU, or account).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
IAM permissions boundaries
Why it's wrong here
IAM permissions boundaries limit the maximum permissions for an IAM user or role, but they are applied per entity and can be overridden by other policies within the account. They do not provide a centralized guardrail across all member accounts in an organization.
- ✓
Service control policies (SCPs)
Why this is correct
SCPs are used in AWS Organizations to centrally manage permissions across all accounts. They define the maximum available permissions and can explicitly deny actions like modifying S3 bucket policies. SCPs apply to all principals in the account and cannot be bypassed by account administrators.
Related concept
SCPs are applied at the AWS Organizations level (root, OU, or account).
- ✗
AWS Config conformance packs
Why it's wrong here
AWS Config conformance packs contain a collection of AWS Config rules and remediation actions. They can evaluate resources against policies and trigger remediation, but they do not actively prevent actions; they detect and potentially fix noncompliant resources after the fact.
- ✗
AWS CloudTrail Insights
Why it's wrong here
AWS CloudTrail Insights analyzes management events to detect unusual activity, such as changes to S3 bucket policies. However, it is a monitoring and logging service; it does not prevent or block API calls.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse SCPs with IAM permissions boundaries, thinking both are equally enforceable centrally, but SCPs operate at the organization level and cannot be bypassed by account administrators, whereas permissions boundaries are account-level and can be removed or modified by an admin with sufficient privileges.
Detailed technical explanation
How to think about this question
SCPs are evaluated as part of the AWS Organizations policy evaluation logic, which occurs before any IAM or resource-based policy evaluation. An SCP with an explicit Deny effect on s3:PutBucketPolicy will cause any API call to modify an S3 bucket policy to fail with an AccessDenied error, regardless of what IAM policies or permissions boundaries are attached to the principal. This makes SCPs the only mechanism that can centrally and irrevocably block actions across all accounts in an organization.
KKey Concepts to Remember
- SCPs are applied at the AWS Organizations level (root, OU, or account).
- SCPs define the maximum available permissions for all entities within affected accounts.
- SCPs cannot be overridden by IAM policies, even by the root user.
- SCPs are preventative, blocking actions before they occur.
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
SCPs are applied at the AWS Organizations level (root, OU, or account).
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.
Review sCPs are applied at the AWS Organizations level (root, OU, or account)., then practise related CLF-C02 questions on the same topic to reinforce the concept.
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Security and Compliance — study guide chapter
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Security and Compliance — This question tests Security and Compliance — SCPs are applied at the AWS Organizations level (root, OU, or account)..
What is the correct answer to this question?
The correct answer is: Service control policies (SCPs) — Service control policies (SCPs) are the correct choice because they allow AWS Organizations to centrally define permission guardrails that apply to all IAM users and roles across member accounts. SCPs can explicitly deny actions like s3:PutBucketPolicy to prevent any account administrator from modifying S3 bucket policies to grant public access, and these restrictions cannot be overridden by any IAM entity within the member account.
What should I do if I get this CLF-C02 question wrong?
Review sCPs are applied at the AWS Organizations level (root, OU, or account)., then practise related CLF-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
SCPs are applied at the AWS Organizations level (root, OU, or account).
About these practice questions
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Last reviewed: Jun 11, 2026
This CLF-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 CLF-C02 exam.
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