The answer is that the SCP does not apply to IAM users in the management account because SCPs only govern member accounts within AWS Organizations. This is the most likely cause when an SCP restricting access key creation fails to take effect, as the management account is explicitly exempt from all service control policies. For the AWS Certified SysOps Administrator Associate SOA-C02 exam, this concept tests your understanding of the fundamental boundary between management and member accounts—a common trap is assuming SCPs apply universally, including to the root user or admin users in the management account. Remember that SCPs are like a guardrail for member accounts only; the management account remains unrestricted. A useful memory tip is "SCP: Service Control for the Peons, not the King"—the management account is the king and is never bound by its own SCPs.
SOA-C02 Security and Compliance Practice Question
This SOA-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 using AWS Organizations with SCPs to restrict access to services. The security team wants to ensure that no IAM user can create access keys, but the SCP is not working as expected. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The SCP is applied to a member account, but the IAM user is in the management account.
Option B is correct because SCPs apply only to member accounts, not the management account. Option A is wrong because SCPs do not affect service control policies themselves. Option C is wrong because SCPs do not take time to propagate. Option D is wrong because SCPs affect all users in member accounts.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The SCP is applied to the root OU but not inherited by the account.
Why it's wrong here
SCPs are inherited by all child OUs and accounts.
✓
The SCP is applied to a member account, but the IAM user is in the management account.
Why this is correct
SCPs do not affect the management account.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
✗
The SCP has a Deny effect, but it takes 24 hours to apply.
Why it's wrong here
SCPs apply within minutes.
✗
The SCP only applies to root users, not IAM users.
Why it's wrong here
SCPs apply to all IAM users and roles in the account.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SOA-C02 ACL questions on filtering logic and placement.
Security and Compliance — This question tests Security and Compliance — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: The SCP is applied to a member account, but the IAM user is in the management account. — Option B is correct because SCPs apply only to member accounts, not the management account. Option A is wrong because SCPs do not affect service control policies themselves. Option C is wrong because SCPs do not take time to propagate. Option D is wrong because SCPs affect all users in member accounts.
What should I do if I get this SOA-C02 question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SOA-C02 ACL questions on filtering logic and placement.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Standard ACLs match source addresses.
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