The answer is `aws:MultiFactorAuthPresent`. This condition key is the correct choice because it returns a boolean value of `true` only when the user has authenticated with a valid MFA device, making it the standard AWS mechanism to enforce MFA for console access. In an IAM policy, you pair this key with a `Deny` effect and a `Bool` condition to block any API call or console session that lacks MFA authentication, which directly addresses the requirement to deny access when MFA is not present. On the AWS Certified Developer Associate DVA-C02 exam, this tests your understanding of IAM policy condition keys for security enforcement, often appearing in scenario-based questions about restricting access to sensitive resources. A common trap is confusing it with `aws:MultiFactorAuthAge`, which checks the time since MFA authentication, not its presence. Memory tip: think "Present for Presence" — if MFA is not present, access is absent.
DVA-C02 Security Practice Question
This DVA-C02 practice question tests your understanding of security. 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 use multi-factor authentication (MFA) when accessing the AWS Management Console. Which IAM policy condition key should be used in a policy attached to each user or group to deny access if MFA is not present?
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 correct condition key is `aws:MultiAuthFactorPresent`, which is a boolean value that is `true` when the user has authenticated using a valid MFA device. By using this key in a `Deny` effect policy (often combined with `Bool` condition), you can block any API call or console access that does not include MFA authentication. This is the standard AWS approach to enforce MFA for console access.
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:RequestedRegion
Why it's wrong here
This condition key checks the AWS region from which a request is made, not whether MFA was used.
✓
aws:MultiFactorAuthPresent
Why this is correct
This condition key checks whether the user authenticated with MFA. It can be used to deny access if MFA is not present.
Related concept
Read the scenario before looking for a memorised answer.
✗
aws:SourceIp
Why it's wrong here
This condition key checks the IP address of the requester, not MFA status.
✗
aws:SecureTransport
Why it's wrong here
This condition key checks whether the request was sent over SSL/TLS, not MFA status.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse `aws:MultiFactorAuthPresent` with `aws:MultiFactorAuthAge` (which checks how long ago MFA was used) or assume that `aws:SecureTransport` (HTTPS) is equivalent to MFA enforcement.
Detailed technical explanation
How to think about this question
The `aws:MultiFactorAuthPresent` key is only set to `true` when the user has authenticated with a temporary credential (e.g., via STS) that includes MFA, or when using a long-term access key with a session token that includes MFA. A common subtlety is that this key is not present at all for requests made using root user credentials or long-term access keys without MFA, so a `Deny` policy must use `Bool` with `"true"` to avoid accidentally blocking all requests when the key is absent.
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 — This question tests Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: aws:MultiFactorAuthPresent — The correct condition key is `aws:MultiAuthFactorPresent`, which is a boolean value that is `true` when the user has authenticated using a valid MFA device. By using this key in a `Deny` effect policy (often combined with `Bool` condition), you can block any API call or console access that does not include MFA authentication. This is the standard AWS approach to enforce MFA for console access.
What should I do if I get this DVA-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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