VA-003 Compare authentication methods Practice Question
This VA-003 practice question tests your understanding of compare authentication methods. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Which TWO authentication methods support multi-factor authentication (MFA) natively within Vault Enterprise?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Userpass authentication
Userpass authentication in Vault Enterprise supports MFA natively because it can be configured with a second factor such as TOTP, Duo, or Okta directly within the auth method's configuration. This allows the userpass method to enforce both a password and an additional authentication factor without requiring an external identity provider or custom wrapper.
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 IAM authentication
Why it's wrong here
AWS auth does not support MFA directly; MFA must be done on AWS side before authentication.
✗
Token authentication
Why it's wrong here
Token auth is for existing tokens, not for user login MFA.
✓
Userpass authentication
Why this is correct
Userpass can be configured with MFA by adding an MFA method.
Related concept
Read the scenario before looking for a memorised answer.
Read the scenario before looking for a memorised answer.
✗
Kubernetes authentication
Why it's wrong here
Kubernetes auth does not have built-in MFA support.
Common exam traps
Common exam trap: answer the scenario, not the keyword
HashiCorp often tests the distinction between 'native MFA support' (where the auth method itself can be configured with MFA without external plugins) versus 'MFA can be added externally' (which is possible for all auth methods via login MFA enforcement, but not native to the method).
Detailed technical explanation
How to think about this question
Vault Enterprise's native MFA support for userpass and LDAP is implemented through the 'mfa_config' and 'mfa_method' endpoints, allowing administrators to associate a TOTP, Duo, or Okta MFA method with the auth method's tune settings. Under the hood, Vault's login flow intercepts the authentication request and requires a valid MFA token before issuing a Vault token, which is enforced via the 'login MFA' system that checks the 'mfa_constraint' on the mount. A real-world scenario is enforcing MFA for human users logging in via LDAP while allowing service accounts using token or AWS IAM to bypass MFA, which requires careful mount tuning.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
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.
Compare authentication methods — This question tests Compare authentication methods — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Userpass authentication — Userpass authentication in Vault Enterprise supports MFA natively because it can be configured with a second factor such as TOTP, Duo, or Okta directly within the auth method's configuration. This allows the userpass method to enforce both a password and an additional authentication factor without requiring an external identity provider or custom wrapper.
What should I do if I get this VA-003 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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