Quick Answer
The answer is Active Directory and Transit. Active Directory is a valid Vault secrets engine because it enables Vault to dynamically manage and rotate AD service account passwords, leveraging LDAP internally while adding AD-specific features like credential rotation and built-in credential store management. Transit is also valid, functioning as an encryption-as-a-service engine that allows data to be encrypted or decrypted using Vault’s cryptographic functions without the data ever leaving the client’s environment. On the HashiCorp Vault Associate VA-003 exam, this question tests your ability to distinguish between core secrets engines and other Vault components like auth methods or storage backends. A common trap is confusing the Active Directory secrets engine with the LDAP auth method, or mistaking Transit for a storage engine—Transit never stores data, it only processes it. For a quick memory tip, remember that both engines manage external credentials or operations: Active Directory handles passwords, Transit handles encryption keys.
This VA-003 practice question tests your understanding of compare and configure secrets engines. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 of the following are valid secrets engines in Vault? (Select exactly 2.)
Active Directory
Active Directory is a secrets engine for AD credentials.
AWS
Why wrong: AWS is an auth method, not a secrets engine.
SSH
Why wrong: SSH is not a built-in secrets engine; there is an SSH secrets engine but it's not listed as such.
LDAP
Why wrong: LDAP is an auth method, not a secrets engine.
Transit
Transit is a secrets engine for encryption.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Active Directory
Option A (Active Directory) is a valid secrets engine in Vault that allows Vault to rotate and manage AD service account passwords, leveraging LDAP internally but with AD-specific features like password rotation and management of the built-in AD credential store. Option E (Transit) is a valid secrets engine that provides encryption-as-a-service, allowing data to be encrypted/decrypted without leaving the client's environment, using Vault's cryptographic functions without storing the data.
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.
Active Directory
Why this is correct
Active Directory is a secrets engine for AD credentials.
Related concept
Read the scenario before looking for a memorised answer.
AWS
Why it's wrong here
AWS is an auth method, not a secrets engine.
SSH
Why it's wrong here
SSH is not a built-in secrets engine; there is an SSH secrets engine but it's not listed as such.
LDAP
Why it's wrong here
LDAP is an auth method, not a secrets engine.
Transit
Why this is correct
Transit is a secrets engine for encryption.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
HashiCorp often tests the distinction between 'auth methods' and 'secrets engines' — candidates confuse LDAP (an auth method) with a secrets engine, or assume SSH is not a secrets engine because it is commonly used for authentication, but SSH is indeed a valid secrets engine for credential management.
Detailed technical explanation
Vault's secrets engines are categorized as 'static' (e.g., Active Directory, where passwords are rotated on a schedule) or 'dynamic' (e.g., Transit, which performs cryptographic operations on-the-fly). The Active Directory secrets engine uses the LDAP protocol but adds a 'rotate-root' operation to change the AD admin password, while Transit uses Vault's keyring to perform encryption/decryption with keys that never leave the server, enabling envelope encryption patterns in distributed systems. A subtle behavior: Transit can perform convergent encryption (deterministic ciphertext for the same plaintext and key) if configured, which is useful for deduplication but can leak information if misused.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the VA-003 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Compare and configure secrets engines — This question tests Compare and configure secrets engines — Read the scenario before looking for a memorised answer..
The correct answer is: Active Directory — Option A (Active Directory) is a valid secrets engine in Vault that allows Vault to rotate and manage AD service account passwords, leveraging LDAP internally but with AD-specific features like password rotation and management of the built-in AD credential store. Option E (Transit) is a valid secrets engine that provides encryption-as-a-service, allowing data to be encrypted/decrypted without leaving the client's environment, using Vault's cryptographic functions without storing the data.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
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