VA-003 Practice Questions 2 — 50 Questions

Question 1

A DevOps team uses Vault's transit engine to encrypt secrets in CI/CD pipelines. They report that encryption operations are failing with 'permission denied' errors. The team has a policy granting 'create' and 'update' capabilities on the transit key path. What is the most likely missing capability?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

The 'encrypt' capability is missing.. The Vault transit engine uses distinct capabilities for key management versus data operations. 'Create' and 'update' allow managing the key itself (e.g., creating or rotating the key), but encryption of data requires the 'encrypt' capability on the transit key path. Without 'encrypt', the API call to encrypt data fails with a 'permission denied' error, even if the key exists and is properly configured.

Answer

The 'read' capability is missing.

Answer

The 'delete' capability is missing.

Answer

The 'list' capability is missing.

Question 2

A security team must automate periodic credential rotation for a database. The rotation script should run on a server that cannot have the Vault binary installed but can make HTTP requests. Which approach should they use?

Accepted Answer

Use the Vault API with proper authentication.. The server can make HTTP requests, allowing it to interact with Vault's RESTful API directly without installing the Vault binary. The Vault API supports token-based authentication (e.g., using X-Vault-Token header) and can be used to programmatically rotate database credentials by calling the appropriate endpoint (e.g., POST /v1/database/rotate-root/:name). This approach satisfies the constraint of no binary installation while enabling secure, automated credential rotation.

Answer

Use the Vault CLI with curl to wrap commands.

Answer

Install Vault binary on the server and use CLI.

Answer

Use Vault Agent to handle rotation.

Question 3

A company deploys Vault in a production environment with three nodes using Integrated Storage (Raft). They have configured Performance Replication to a secondary datacenter. The primary datacenter experiences a complete outage. After restoring the primary, they promote the secondary to primary. However, they notice that some secrets written to the primary just before the outage are missing in the secondary. The replication status shows no errors. What is the most likely cause and correct action?

Accepted Answer

Accept the data loss and continue with the secondary as primary. Performance Replication in Vault is asynchronous, meaning there is no guarantee that all writes to the primary are replicated to the secondary before a failure. When the primary experiences a complete outage, any secrets written just before the outage that had not yet been acknowledged by the secondary are permanently lost. Since the replication status shows no errors, the system is consistent up to the last replicated point, and the only correct action is to accept the data loss and continue with the promoted secondary as the new primary.

Answer

Restore the primary from backup to recover missing secrets

Answer

Failback to the original primary after restoring it

Answer

Re-promote the original primary and use it as the new primary

Question 4

A company uses both userpass and AppRole authentication methods. They notice that tokens issued via AppRole are not properly revoked when the corresponding secret_id is deleted. Which concept explains this behavior?

Accepted Answer

Tokens are independent of secret_id after login; deleting secret_id does not revoke the token.. When a token is issued via AppRole, the token is created after a successful login using a secret_id. The token itself is independent of the secret_id; deleting the secret_id does not affect the token's lifecycle. Token revocation must be performed explicitly on the token, not by removing the secret_id.

Answer

The secret_id TTL was not set, causing the token to outlive the secret_id.

Answer

AppRole does not support entity aliases, so revoking the secret_id does not affect the token.

Answer

The token was created with a periodic token and cannot be revoked.

Question 5

Which THREE are valid operations in the Vault transit secrets engine? (Choose three.)

Accepted Answer

rewrap. The Vault transit secrets engine provides encryption as a service, and its core operations are encrypt, decrypt, rewrap, and datakey generation. Rewrap is valid because it decrypts ciphertext and re-encrypts it with the latest key version without exposing the plaintext to the caller, maintaining security during key rotation.

Answer

issue

Answer

revoke

Question 6

A Vault cluster configured with auto-unseal using AWS KMS is deployed across two availability zones. After a network partition, the standby node remains sealed while the active node is unsealed and serving requests. What is the most likely reason the standby cannot unseal?

Accepted Answer

The standby node cannot communicate with AWS KMS due to the network partition.. In a Vault cluster with auto-unseal via AWS KMS, each node must independently communicate with AWS KMS to unseal itself. A network partition that isolates the standby node from AWS KMS prevents it from reaching the KMS endpoint, so it cannot decrypt its unseal key and remains sealed. The active node is unaffected because it is already unsealed and serving requests from the other side of the partition.

Answer

The standby node is using the wrong AWS region configuration.

Answer

The active node consumed all available KMS API quota for the region.

Answer

The cluster address on the standby is misconfigured.

Question 7

A Vault administrator wants to allow users to authenticate using their corporate Active Directory credentials. Which authentication method should they enable?

Accepted Answer

LDAP. LDAP (Lightweight Directory Access Protocol) is the correct choice because it enables Vault to authenticate users against an external corporate Active Directory (AD) server. Vault's LDAP auth method binds to the AD directory using a service account, then validates user credentials via a simple bind operation, allowing seamless integration with existing corporate identity infrastructure.

Answer

Okta

Answer

AppRole

Answer

Userpass

Question 8

A user wants to log in using the userpass auth method with username 'jdoe' and password 'p@ssw0rd'. What is the correct API endpoint and request?

Accepted Answer

POST /v1/auth/userpass/login/jdoe with JSON body {"password":"p@ssw0rd"}. The userpass auth method in Vault requires a POST request to the login endpoint with the password provided in the JSON body. Option D correctly uses POST /v1/auth/userpass/login/jdoe with {"password":"p@ssw0rd"}, which matches the Vault API specification for authenticating against a userpass backend.

Answer

GET /v1/auth/userpass/login/jdoe with header "password: p@ssw0rd"

Answer

PUT /v1/auth/userpass/login/jdoe with JSON body {"password":"p@ssw0rd"}

Answer

POST /v1/auth/userpass/login/jdoe?password=p@ssw0rd

Question 9

Which TWO of the following actions can reduce the number of active leases in Vault? (Select two.)

Accepted Answer

Reducing the default lease TTL. Reducing the default lease TTL (time-to-live) shortens the maximum duration for which a lease can be issued without renewal. When existing leases expire sooner, the system automatically removes them from the active lease count, thereby reducing the number of active leases. This directly affects the lease lifecycle by forcing earlier expiration.

Answer

Creating a new lease

Answer

Increasing the max lease TTL

Answer

Renewing a lease

Question 10

Refer to the exhibit. What does min_decryption_version = 1 indicate?

Accepted Answer

Version 1 is the minimum version that can be used for decryption.. In Vault Enterprise, the `min_decryption_version` parameter on a transit key specifies the lowest key version that is allowed to decrypt existing ciphertext. Setting `min_decryption_version = 1` means that any key version from 1 up to the current version can be used for decryption; version 1 is the minimum allowed. This ensures backward compatibility while allowing newer versions to be used for encryption.

Answer

Data encrypted with version 1 can only be decrypted with version 1.

Answer

Only data encrypted with version 1 or higher can be decrypted.

Answer

All ciphertext must be rewrapped to version 1.

Answer

Version 1 keys are not allowed for decryption.

Question 11

Drag and drop the steps to perform a Vault disaster recovery using the replication feature into the correct order.

Accepted Answer

Step 1: Initialize clusters, Step 2: Enable primary replication, Step 3: Generate secondary activation token, Step 4: Enable secondary replication, Step 5: Promote secondary to primary if needed. Initialize clusters, enable primary replication, generate token, enable secondary, promote if needed.

Answer

Step 1: Generate secondary activation token, Step 2: Enable primary replication, Step 3: Enable secondary replication, Step 4: Initialize clusters, Step 5: Promote secondary to primary if needed

Answer

Step 1: Enable primary replication, Step 2: Enable secondary replication, Step 3: Initialize clusters, Step 4: Generate secondary activation token, Step 5: Promote secondary to primary if needed

Answer

Step 1: Enable secondary replication, Step 2: Enable primary replication, Step 3: Initialize clusters, Step 4: Generate secondary activation token, Step 5: Promote secondary to primary if needed

Question 12

A Vault cluster is sealed. An operator attempts to renew a lease but gets an error. What is the most likely error?

Accepted Answer

Vault is sealed. When Vault is sealed, it cannot process any operations, including lease renewal. The error would indicate the sealed state.

Answer

Upstream error

Answer

Permission denied

Answer

Lease not found

Question 13

Which THREE API endpoints are valid for managing policies in Vault?

Accepted Answer

GET /v1/sys/policy/{name}. The GET, DELETE, and POST endpoints are valid for managing policies in Vault. GET retrieves a policy, DELETE removes it, and POST creates or updates a policy. These correspond to the standard CRUD operations supported by Vault's sys/policy API.

Answer

PUT /v1/sys/policy/{name}

Answer

PATCH /v1/sys/policy/{name}

Question 14

Drag and drop the steps to set up Vault's Transit secrets engine for encryption/decryption into the correct order.

Accepted Answer

Enable the transit secrets engine, create a key, encrypt data, decrypt data, rotate the key. The correct order is to first enable the Transit secrets engine, then create a key, use the key to encrypt and decrypt data, and finally rotate the key for security. Enabling creates the path, key creation provides the encryption material, and rotation updates the key without interrupting operations.

Answer

Create a key, enable the transit secrets engine, encrypt data, decrypt data, rotate the key

Answer

Enable the transit secrets engine, create a key, rotate the key, encrypt data, decrypt data

Answer

Enable the transit secrets engine, encrypt data, create a key, decrypt data, rotate the key

Question 15

A DevOps team is using Vault's database secrets engine to generate dynamic credentials for a PostgreSQL database. They notice that the lease duration is set to 24 hours, but security policy requires that credentials expire after 1 hour. What should the team do to enforce the 1-hour expiration without changing the default lease TTL for all secrets?

Accepted Answer

Configure the role with a ttl of 1h.. The database secrets engine allows role-level TTL configuration that overrides the default lease duration for credentials generated from that role. By setting the role's `ttl` to 1h, the team enforces a 1-hour expiration for credentials created under that specific role without affecting the default lease TTL for all secrets or other roles. This directly meets the security policy requirement while maintaining flexibility for other secrets.

Answer

Set the mount's max_lease_ttl to 1h.

Answer

Ask each developer to set the TTL when requesting credentials.

Answer

Use a periodic token with a period of 1h.

Question 16

A Vault operator runs `vault status` and sees the output above. The Vault cluster is in production and currently unresponsive to API requests. What is the most likely cause of the unresponsiveness?

Accepted Answer

The Vault cluster is sealed.. The `vault status` output shows that the Vault cluster is sealed. When a Vault cluster is sealed, it cannot process any API requests because the encryption key required to decrypt the data is not available in memory. This is the most common cause of unresponsiveness in a production Vault cluster that has been properly initialized.

Answer

The cluster is not initialized.

Answer

The cluster does not have HA enabled.

Answer

The cluster has no active leader.

Question 17

An admin creates a token with TTL=48h and explicit_max_ttl=120h. The token is renewed every 24h. After 10 days, will the token still be valid?

Accepted Answer

No, because the total lifetime cannot exceed the explicit_max_ttl of 120h.. The token's total lifetime is capped by the `explicit_max_ttl` of 120 hours (5 days). Even though the token is renewed every 24 hours, the cumulative time since creation cannot exceed the explicit maximum TTL. After 10 days (240 hours), the token will have long surpassed the 120-hour limit and will be invalid.

Answer

Yes, because TTL refreshes to 48h on each renewal.

Answer

Yes, if renewed before TTL expires, it can persist indefinitely.

Answer

No, because tokens cannot be renewed more than 5 times.

Question 18

A developer wants to encrypt a string "hello" using Vault's transit engine. What must they send in the API request?

Accepted Answer

The plaintext "hello" as a base64 encoded string. E is correct because Vault's transit engine requires plaintext to be base64-encoded before encryption. The API endpoint expects the plaintext as a base64-encoded string in the `plaintext` field of the request body. This ensures binary-safe transmission and consistent encoding across different systems.

Answer

The ciphertext of "hello"

Answer

Both the key name and the ciphertext

Answer

A reference to the key

Answer

The plaintext "hello" in raw bytes

Question 19

A security team wants to ensure that tokens can be revoked immediately if a compromised token is detected, even if the token ID is unknown. Which token feature should they use?

Accepted Answer

Token accessors. Token accessors allow revocation of a token without knowing the token ID. They are specifically designed for this purpose.

Answer

Periodic tokens

Answer

Batch tokens

Answer

Orphan tokens

Question 20

An application using a service token fails to renew it, receiving an error 'permission denied'. The token has policies that include 'path "auth/token/renew-self" { capabilities = ["update"] }'. The token is not expired and has remaining TTL. What is a likely cause?

Accepted Answer

The token has reached its explicit max TTL. The token's explicit max TTL has been reached, preventing any further renewals even though the token still has remaining TTL. Option A is incorrect because num_uses=0 means unlimited uses, not that it has reached zero. Option B is incorrect because a batch token cannot be renewed at all, but the token's policy includes renew-self capability, indicating it is a service token. Option C is incorrect because if the parent token were revoked, the token itself would be revoked and invalid, not just failing to renew with a permission denied error.

Answer

The token's num_uses has reached zero

Answer

The token is a batch token

Answer

The token's parent was revoked