- A
Consolidated Billing
Why wrong: Consolidated Billing combines costs from multiple accounts into a single bill but does not provide any mechanism to enforce permissions or restrict actions. It is a billing feature, not a security control.
- B
Service Control Policies (SCPs)
SCPs allow you to define and enforce maximum permissions for all accounts in your AWS Organization. They act as a guardrail, ensuring that even if an account has permissive IAM policies, the effective permissions are limited by the SCP. This enables central enforcement of security baselines such as preventing the disabling of CloudTrail or modification of S3 bucket policies that block public access.
- C
AWS Config rules
Why wrong: AWS Config rules evaluate your resource configurations against desired policies. They can detect noncompliant resources and trigger remediation actions, but they do not prevent actions from being taken in real time. They are detective, not preventive, controls.
- D
IAM roles
Why wrong: IAM roles grant permissions to users and services within a single AWS account. They cannot centrally restrict permissions across multiple accounts. While cross-account roles exist, they are not designed to enforce a baseline of allowed or denied actions across all accounts in an organization.
Quick Answer
The answer is Service Control Policies (SCPs). SCPs are the correct choice because they allow you to centrally enforce baseline permissions across all accounts in an AWS Organization, acting as a guardrail that restricts what actions even full administrators in member accounts can take. By attaching an SCP that explicitly denies actions like `cloudtrail:StopLogging` or `s3:PutBucketPolicy`, the security team can prevent users from disabling AWS CloudTrail or modifying S3 bucket policies that block public access, regardless of any IAM policies within those accounts. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your understanding of how SCPs differ from IAM policies—SCPs set boundaries at the organization level, while IAM policies grant permissions within an account. A common trap is confusing SCPs with IAM or AWS Config; remember that SCPs are preventive guardrails, not detective rules. Memory tip: think of SCPs as the "security ceiling" for your entire AWS organization—they set the maximum allowed permissions, so even a rogue admin can't break the baseline rules.
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. 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 expanding its AWS environment from a single account to multiple accounts using AWS Organizations. The security team wants to enforce a baseline set of permissions across all accounts, ensuring that users in any account cannot disable AWS CloudTrail or modify Amazon S3 bucket policies that prevent public access. Which feature of AWS Organizations should the security team use to achieve this control?
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 you to centrally define and enforce baseline permissions across all accounts in an AWS Organization. SCPs act as a guardrail, restricting what actions users and roles in member accounts can perform, even if they have full administrative privileges within their own account. By creating an SCP that explicitly denies the `cloudtrail:StopLogging`, `cloudtrail:DeleteTrail`, and `s3:PutBucketPolicy` actions (or similar), the security team can prevent disabling CloudTrail and modifying S3 bucket policies that block public access across the entire organization.
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.
- ✗
Consolidated Billing
Why it's wrong here
Consolidated Billing combines costs from multiple accounts into a single bill but does not provide any mechanism to enforce permissions or restrict actions. It is a billing feature, not a security control.
- ✓
Service Control Policies (SCPs)
Why this is correct
SCPs allow you to define and enforce maximum permissions for all accounts in your AWS Organization. They act as a guardrail, ensuring that even if an account has permissive IAM policies, the effective permissions are limited by the SCP. This enables central enforcement of security baselines such as preventing the disabling of CloudTrail or modification of S3 bucket policies that block public access.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Config rules
Why it's wrong here
AWS Config rules evaluate your resource configurations against desired policies. They can detect noncompliant resources and trigger remediation actions, but they do not prevent actions from being taken in real time. They are detective, not preventive, controls.
- ✗
IAM roles
Why it's wrong here
IAM roles grant permissions to users and services within a single AWS account. They cannot centrally restrict permissions across multiple accounts. While cross-account roles exist, they are not designed to enforce a baseline of allowed or denied actions across all accounts in an organization.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS Config rules (detective) with SCPs (preventive), thinking that Config rules can block actions when they only alert on non-compliance after the fact.
Detailed technical explanation
How to think about this question
SCPs are evaluated before any IAM policies, meaning that if an SCP denies an action, the request is implicitly denied regardless of what IAM policies allow. SCPs use a deny-by-default model for actions not explicitly allowed, but you can also use explicit deny statements to block specific high-risk actions like `cloudtrail:StopLogging` or `s3:PutBucketPolicy`. A common real-world scenario is using SCPs to enforce that only a centralized logging account can create or modify CloudTrail trails, preventing individual account administrators from disabling audit logging.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
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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 — Read the scenario before looking for a memorised answer..
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 you to centrally define and enforce baseline permissions across all accounts in an AWS Organization. SCPs act as a guardrail, restricting what actions users and roles in member accounts can perform, even if they have full administrative privileges within their own account. By creating an SCP that explicitly denies the `cloudtrail:StopLogging`, `cloudtrail:DeleteTrail`, and `s3:PutBucketPolicy` actions (or similar), the security team can prevent disabling CloudTrail and modifying S3 bucket policies that block public access across the entire organization.
What should I do if I get this CLF-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: Jun 11, 2026
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