SCS-C02 Management and Security Governance Practice Question
This SCS-C02 practice question tests your understanding of management and security 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 has a single AWS account with multiple IAM users. The security team wants to enforce that all users use MFA for API calls. An IAM policy is created that denies all actions unless MFA is present. The policy is attached to all users. However, users report that they can still make API calls without MFA. The security team reviews the policy and confirms it is correct. What is the most likely reason the policy 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 policy uses the wrong condition key; it should be 'aws:MultiFactorAuthPresent'.
Option C is correct. If users have an explicit Allow (e.g., from a group policy) that does not require MFA, the Deny in the MFA policy might not override if the Allow is from a different policy. However, the most common reason is that the policy is not attached to the user's groups or they have an inline policy that allows actions. But the question states the policy is attached to all users. Another possibility is that the condition key is misspelled. The correct condition key is 'aws:MultiFactorAuthPresent'. If the policy uses 'aws:MultiFactorAuthAge' or a different key, it may not work. Option A is wrong because SCPs are not used in a single account. Option B is wrong because CloudTrail does not enforce MFA. Option D is wrong because password policy does not affect API calls.
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 policy uses the wrong condition key; it should be 'aws:MultiFactorAuthPresent'.
Why this is correct
Correct: The condition key must be exactly correct.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
✗
AWS CloudTrail is not enabled, so the policy cannot be evaluated.
Why it's wrong here
Incorrect: CloudTrail is for logging, not policy evaluation.
✗
An SCP at the root level allows all actions without MFA.
Why it's wrong here
Incorrect: SCPs require AWS Organizations; not applicable to single account.
✗
The IAM password policy does not require MFA.
Why it's wrong here
Incorrect: Password policy is for console, not API.
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.
Management and Security Governance — This question tests Management and Security Governance — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: The policy uses the wrong condition key; it should be 'aws:MultiFactorAuthPresent'. — Option C is correct. If users have an explicit Allow (e.g., from a group policy) that does not require MFA, the Deny in the MFA policy might not override if the Allow is from a different policy. However, the most common reason is that the policy is not attached to the user's groups or they have an inline policy that allows actions. But the question states the policy is attached to all users. Another possibility is that the condition key is misspelled. The correct condition key is 'aws:MultiFactorAuthPresent'. If the policy uses 'aws:MultiFactorAuthAge' or a different key, it may not work. Option A is wrong because SCPs are not used in a single account. Option B is wrong because CloudTrail does not enforce MFA. Option D is wrong because password policy does not affect API calls.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This SCS-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 SCS-C02 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.