- A
Create an IAM policy that denies all actions if aws:MultiFactorAuthPresent is false.
This policy forces MFA to be used.
- B
Enable CloudTrail to monitor MFA usage.
Why wrong: CloudTrail logs but does not enforce MFA.
- C
Attach the MFA enforcement policy to all IAM users or groups.
The policy must be attached to be effective.
- D
Set the password policy to require MFA.
Why wrong: Password policy does not include MFA requirement.
- E
Enable MFA for each IAM user.
Users need to have MFA devices assigned.
SCS-C02 Identity and Access Management Practice Question
This SCS-C02 practice question tests your understanding of identity and access management. 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 wants to enforce that all IAM users must use multi-factor authentication (MFA) to access the AWS Management Console. Which THREE steps should the company take?
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
Create an IAM policy that denies all actions if aws:MultiFactorAuthPresent is false.
Option A, B, and D are correct because MFA devices must be assigned, an IAM policy can deny access if MFA is not present, and the policy must be attached to users or groups. Option C is wrong because CloudTrail does not enforce MFA. Option E is wrong because there is no built-in MFA enforcement for the root user via password policy.
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.
- ✓
Create an IAM policy that denies all actions if aws:MultiFactorAuthPresent is false.
Why this is correct
This policy forces MFA to be used.
Related concept
Standard ACLs match source addresses.
- ✗
Enable CloudTrail to monitor MFA usage.
Why it's wrong here
CloudTrail logs but does not enforce MFA.
- ✓
Attach the MFA enforcement policy to all IAM users or groups.
Why this is correct
The policy must be attached to be effective.
Related concept
Standard ACLs match source addresses.
- ✗
Set the password policy to require MFA.
Why it's wrong here
Password policy does not include MFA requirement.
- ✓
Enable MFA for each IAM user.
Why this is correct
Users need to have MFA devices assigned.
Related concept
Standard ACLs match source addresses.
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 — study guide chapter
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FAQ
Questions learners often ask
What does this SCS-C02 question test?
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: Create an IAM policy that denies all actions if aws:MultiFactorAuthPresent is false. — Option A, B, and D are correct because MFA devices must be assigned, an IAM policy can deny access if MFA is not present, and the policy must be attached to users or groups. Option C is wrong because CloudTrail does not enforce MFA. Option E is wrong because there is no built-in MFA enforcement for the root user via password policy.
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.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Last reviewed: Jun 20, 2026
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.
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