The answer is the `aws:MultiFactorAuthPresent` condition key. This key evaluates to `true` when the user has authenticated with a valid MFA device during the current session, allowing you to enforce MFA for EC2 actions by adding a `Deny` effect in an IAM policy when the condition is `false`. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this tests your understanding of IAM policy conditions for security enforcement, often appearing in scenario-based questions about restricting API calls. A common trap is confusing this key with `aws:MultiFactorAuthAge`, which checks how long ago MFA was used, not its presence. To remember, think "MFA Present = MFA Required" — if the key is not present, the action is denied.
SOA-C02 Security and Compliance Practice Question
This SOA-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 requires that all users in an AWS account must authenticate with multi-factor authentication (MFA) before they can perform any actions on Amazon EC2 instances. The SysOps administrator needs to implement this requirement using IAM policies. Which IAM policy condition key should be used to enforce MFA?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
aws:MultiFactorAuthPresent
The `aws:MultiFactorAuthPresent` condition key checks whether the user authenticated using a valid MFA device before making the API request. By setting this condition to `true` in an IAM policy, you can enforce that all actions on EC2 instances require MFA authentication, meeting the company's requirement.
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.
✗
aws:SourceIp
Why it's wrong here
aws:SourceIp restricts access based on the source IP address, not MFA status.
✓
aws:MultiFactorAuthPresent
Why this is correct
This condition key checks if the requester authenticated with an MFA device. It can be used to require MFA for specific actions.
Related concept
Read the scenario before looking for a memorised answer.
✗
aws:RequestedRegion
Why it's wrong here
aws:RequestedRegion limits actions to specific AWS Regions, not MFA.
✗
iam:PassedToService
Why it's wrong here
iam:PassedToService is used when passing an IAM role to a service, not for MFA enforcement.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse `aws:MultiFactorAuthPresent` with `aws:SourceIp` or `iam:PassedToService`, thinking IP-based or role-passing conditions can enforce MFA, but only the MFA-specific condition key directly checks authentication strength.
Detailed technical explanation
How to think about this question
The `aws:MultiFactorAuthPresent` condition key evaluates to `true` only when the user's session includes a valid MFA token, typically obtained via AWS STS `GetSessionToken` with MFA or through an IAM role with MFA enforcement. A subtle behavior is that this key does not enforce MFA for root user actions unless explicitly scoped, and it must be combined with `aws:MultiFactorAuthAge` to require recent MFA validation.
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: aws:MultiFactorAuthPresent — The `aws:MultiFactorAuthPresent` condition key checks whether the user authenticated using a valid MFA device before making the API request. By setting this condition to `true` in an IAM policy, you can enforce that all actions on EC2 instances require MFA authentication, meeting the company's requirement.
What should I do if I get this SOA-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.
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 →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company wants to enforce that all IAM users in an AWS account must use multi-factor authentication (MFA) to access the AWS Management Console. Which IAM policy effect should be used to deny access if MFA is not present?
easy
A.Allow with a condition that aws:MultiFactorAuthPresent is false
B.Allow with a condition that aws:MultiFactorAuthPresent is true
✓ C.Deny with a condition that aws:MultiFactorAuthPresent is false
D.Deny with a condition that aws:MultiFactorAuthPresent is true
Why C: The correct approach is to use a Deny effect in a condition that checks if MFA is present. Option B is correct because it denies access when the condition 'aws:MultiFactorAuthPresent' is false. Option A is wrong because Allow would grant access even without MFA. Option C is wrong because it allows access only when MFA is present, but does not deny when missing. Option D is wrong because it allows access when MFA is not present.
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This SOA-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 SOA-C02 exam.
Question Discussion
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