This DOP-C02 practice question tests your understanding of security and compliance. 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 multi-account AWS environment using AWS Organizations. They want to centrally manage user access to all accounts using single sign-on (SSO) and enforce multi-factor authentication (MFA). Which service should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use AWS IAM Identity Center (AWS SSO) to manage access and enforce MFA.
AWS IAM Identity Center (formerly AWS SSO) is the correct service because it provides a centralized place to manage user access and permissions across all AWS accounts in an AWS Organization. It natively supports enforcing multi-factor authentication (MFA) through an identity source (e.g., the built-in identity store or an external IdP) and integrates directly with AWS Organizations to grant single sign-on access without needing to create IAM users in each account.
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 Secrets Manager to store and rotate IAM user credentials.
Why it's wrong here
Secrets Manager is for database credentials and API keys, not for user identity management.
✗
Create IAM users in each account and share the credentials securely.
Why it's wrong here
Managing IAM users in each account is not scalable and sharing credentials is insecure.
✗
Use Amazon Cognito user pools with an identity broker.
Why it's wrong here
Cognito is designed for customer identity and access management, not for AWS accounts.
✓
Use AWS IAM Identity Center (AWS SSO) to manage access and enforce MFA.
Why this is correct
IAM Identity Center provides centralized SSO and MFA enforcement across multiple AWS accounts.
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 Amazon Cognito (a customer identity service) with workforce identity management, or assume that storing credentials in Secrets Manager or creating per-account IAM users is a viable centralized solution, when in fact AWS IAM Identity Center is the only service designed for multi-account SSO with MFA enforcement in an AWS Organizations context.
Detailed technical explanation
How to think about this question
AWS IAM Identity Center uses a centralized identity store (or can federate with an external IdP like Azure AD or Okta) to issue temporary credentials via AWS STS for each account in the organization. When MFA is enforced at the identity source level, the user must complete an MFA challenge before IAM Identity Center issues the SAML 2.0 assertion or OIDC token, ensuring that all subsequent AWS console or CLI access is protected. This eliminates the need to manage per-account IAM users and enables fine-grained permission sets that map to IAM roles in each account.
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.
Security and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use AWS IAM Identity Center (AWS SSO) to manage access and enforce MFA. — AWS IAM Identity Center (formerly AWS SSO) is the correct service because it provides a centralized place to manage user access and permissions across all AWS accounts in an AWS Organization. It natively supports enforcing multi-factor authentication (MFA) through an identity source (e.g., the built-in identity store or an external IdP) and integrates directly with AWS Organizations to grant single sign-on access without needing to create IAM users in each account.
What should I do if I get this DOP-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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