Quick Answer
The answer is an MFA device that is not properly synchronized with AWS. When an IAM user has configured a virtual or hardware MFA device but the time-based one-time password (TOTP) is out of sync—often due to clock drift on the authenticator app or hardware token—the authentication challenge fails even though the user’s policy correctly requires MFA. This tests your understanding of how the `aws:MultiFactorAuthPresent` condition key evaluates to `true` only when the session is authenticated with a synchronized device; a desynchronized token causes the condition to effectively deny access. On the AWS Certified Security Specialty SCS-C02 exam, this is a common trap where candidates mistakenly blame the IAM policy or assume MFA cannot be used for console access, but the real issue is device synchronization. Memory tip: think “sync or sink”—if the token’s clock drifts, the login sinks.
This SCS-C02 practice question tests your understanding of identity and access management. 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 has a policy that requires all IAM users to use multi-factor authentication (MFA) to access the AWS Management Console. A user reports that they are unable to sign in even after configuring MFA. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
The IAM policy explicitly denies console access.
Why wrong: The policy allows console access, but requires MFA.
The user is using the root account instead of an IAM user.
Why wrong: Root account also supports MFA.
The MFA token has expired.
Why wrong: MFA tokens are generated dynamically and do not expire like passwords.
The MFA device is not properly synchronized with AWS.
Time sync issues can cause MFA authentication to fail.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The MFA device is not properly synchronized with AWS.
If the IAM user policy denies access if MFA is not present, but the user has MFA configured, the issue could be that the policy condition key aws:MultiFactorAuthPresent is set to 'false' when the session is not using MFA. However, if the user has MFA, the condition should be true. Another common issue is that the MFA device is not assigned to the user, or the user is using a non-MFA session. Option A is most likely because if the MFA device is not synced, authentication fails. Option B is wrong because the policy can still apply to console users. Option C is wrong because MFA can be used for console. Option D is wrong because MFA tokens expire, but that would only affect the session, not sign-in.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
The IAM policy explicitly denies console access.
Why it's wrong here
The policy allows console access, but requires MFA.
The user is using the root account instead of an IAM user.
Why it's wrong here
Root account also supports MFA.
The MFA token has expired.
Why it's wrong here
MFA tokens are generated dynamically and do not expire like passwords.
The MFA device is not properly synchronized with AWS.
Why this is correct
Time sync issues can cause MFA authentication to fail.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
Identify which SCS-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Identity and Access Management — study guide chapter
Learn the concepts, then practise the questions
Identity and Access Management practice questions
Targeted practice on this topic area only
All SCS-C02 questions
1,738 questions across all exam domains
AWS Certified Security Specialty SCS-C02 study guide
Full concept coverage aligned to exam objectives
SCS-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise SCS-C02 questions linked to Threat Detection and Incident Response.
Practise SCS-C02 questions linked to Security Logging and Monitoring.
Practise SCS-C02 questions linked to Identity and Access Management.
Practise SCS-C02 questions linked to Management and Security Governance.
Practise SCS-C02 questions linked to Infrastructure Security.
Practise SCS-C02 questions linked to Data Protection.
Practise SCS-C02 questions linked to SCS-C02 fundamentals.
Practise SCS-C02 questions linked to SCS-C02 scenario.
Practise SCS-C02 questions linked to SCS-C02 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Identity and Access Management — This question tests Identity and Access Management — Read the scenario before looking for a memorised answer..
The correct answer is: The MFA device is not properly synchronized with AWS. — If the IAM user policy denies access if MFA is not present, but the user has MFA configured, the issue could be that the policy condition key aws:MultiFactorAuthPresent is set to 'false' when the session is not using MFA. However, if the user has MFA, the condition should be true. Another common issue is that the MFA device is not assigned to the user, or the user is using a non-MFA session. Option A is most likely because if the MFA device is not synced, authentication fails. Option B is wrong because the policy can still apply to console users. Option C is wrong because MFA can be used for console. Option D is wrong because MFA tokens expire, but that would only affect the session, not sign-in.
Identify which SCS-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 →
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.