The answer is to combine a service control policy (SCP) that denies console access unless `aws:MultiFactorAuthPresent` is true with a complementary IAM policy in each account that enforces the same condition for API access. This approach works because SCPs act as centralized guardrails at the organizational unit or account level, preventing any IAM user from bypassing MFA even if a local account administrator tries to override the rule. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this tests your understanding of how SCPs differ from IAM policies—SCPs set boundary permissions that cannot be overridden by account admins, making them essential for enforcing MFA across accounts. A common trap is choosing only an IAM policy per account, which lacks centralized enforcement and can be removed by rogue admins. Memory tip: think of SCPs as the “bouncer at the door” that checks MFA before anyone enters the console, while IAM policies handle the fine-grained permissions inside.
SAP-C02 Practice Question: Design Solutions for Organizational Complexity
This SAP-C02 practice question tests your understanding of design solutions for organizational complexity. 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 designing a multi-account strategy using AWS Organizations. They need to enforce that all IAM users in member accounts must use multi-factor authentication (MFA) to access the AWS Management Console. Which TWO approaches should they combine to enforce this requirement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a service control policy (SCP) that denies console access unless aws:MultiFactorAuthPresent is true.
Option C is correct because a service control policy (SCP) can be applied at the organizational unit (OU) or account level to deny all console access unless the `aws:MultiFactorAuthPresent` condition key is `true`. This enforces MFA usage across all member accounts centrally, without requiring per-account IAM policy changes. SCPs are the recommended mechanism for guardrails in AWS Organizations because they cannot be overridden by account administrators.
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.
✗
Use AWS Config rules to detect users without MFA and send alerts.
Why it's wrong here
Config rules are detective, not preventive.
✗
Enable AWS CloudTrail to log console access without MFA.
Why it's wrong here
CloudTrail only logs, does not enforce.
✓
Create a service control policy (SCP) that denies console access unless aws:MultiFactorAuthPresent is true.
Why this is correct
SCPs can centrally enforce MFA across all accounts.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use AWS Single Sign-On (SSO) with MFA enabled for all users.
Why it's wrong here
AWS SSO applies to federated users, not IAM users.
✓
Create an IAM policy in each account that denies console access unless aws:MultiFactorAuthPresent is true.
Why this is correct
IAM policies enforce MFA for users in each account.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse detective controls (AWS Config) with preventive controls (SCPs) or assume that a per-account IAM policy (Option E) is sufficient, but the question requires a multi-account strategy where SCPs provide centralized enforcement that cannot be bypassed by account administrators.
Detailed technical explanation
How to think about this question
The `aws:MultiFactorAuthPresent` condition key is a boolean that is `true` only when the session was authenticated using a multi-factor authentication device. In an SCP, you can combine this with a `Deny` effect and a `Null` condition to block any request where the key is missing or false. A common subtlety is that the condition key is not present for requests made using long-term credentials (e.g., access keys) unless MFA is explicitly required at the time of the API call, so the SCP must also handle the case where the key is absent (e.g., `Null` condition).
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 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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Design Solutions for Organizational Complexity — This question tests Design Solutions for Organizational Complexity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a service control policy (SCP) that denies console access unless aws:MultiFactorAuthPresent is true. — Option C is correct because a service control policy (SCP) can be applied at the organizational unit (OU) or account level to deny all console access unless the `aws:MultiFactorAuthPresent` condition key is `true`. This enforces MFA usage across all member accounts centrally, without requiring per-account IAM policy changes. SCPs are the recommended mechanism for guardrails in AWS Organizations because they cannot be overridden by account administrators.
What should I do if I get this SAP-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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Question Discussion
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