SCS-C02 Identity and Access Management Practice Question
This SCS-C02 practice question tests your understanding of identity and access management. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 uses AWS Organizations with all features enabled. The security team wants to enforce that all IAM users in member accounts must use multi-factor authentication (MFA) to access the AWS Management Console. They create an SCP that denies all actions if the user does not have MFA. The SCP is attached to the root organizational unit. After a few days, users in a member account report that they can still access the console without MFA. The security team reviews the SCP and finds it is correctly configured. What is the MOST likely reason the SCP is not being enforced?
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 member account is the management account of the organization, which is not affected by SCPs.
Option C is correct because SCPs do not affect the management account of the organization. If the member account is actually the management account, the SCP does not apply. Option A is incorrect because SCPs are not affected by service control policies at the account level (they are the same). Option B is incorrect because SCPs do not require explicit allow; they work by denying. Option D is incorrect because SCPs apply to all users and roles, including root user, unless explicitly exempted.
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 member account has a separate SCP attached that allows the actions, overriding the root SCP.
Why it's wrong here
Incorrect: SCPs are evaluated together; a deny always overrides an allow.
✓
The member account is the management account of the organization, which is not affected by SCPs.
Why this is correct
Correct: The management account is not subject to SCPs.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
✗
The SCP is missing an explicit allow for the actions, so the default deny is not taking effect.
Why it's wrong here
Incorrect: SCPs use implicit deny; an explicit allow is not required.
✗
The SCP does not apply to the root user of the member account, so root can bypass MFA.
Why it's wrong here
Incorrect: SCPs apply to all principals, including root.
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 SCS-C02 ACL questions on filtering logic and placement.
Identity and Access Management — This question tests Identity and Access Management — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: The member account is the management account of the organization, which is not affected by SCPs. — Option C is correct because SCPs do not affect the management account of the organization. If the member account is actually the management account, the SCP does not apply. Option A is incorrect because SCPs are not affected by service control policies at the account level (they are the same). Option B is incorrect because SCPs do not require explicit allow; they work by denying. Option D is incorrect because SCPs apply to all users and roles, including root user, unless explicitly exempted.
What should I do if I get this SCS-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 SCS-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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