Most Recent HashiCorp HCVA0-003 Exam Dumps

Batch tokens are a type of tokens that are not persisted in Vault's storage backend, but are encrypted blobs that carry enough information to perform Vault actions. Batch tokens are extremely lightweight and scalable, and can improve the throughput for token generation. Batch tokens are suitable for high-volume and ephemeral workloads, such as containers or serverless functions, that require short-lived and non-renewable tokens. Batch tokens can be created by using the -type=batch flag in the vault token create command, or by configuring the token_type parameter in the auth method's role or mount options. Batch tokens have some limitations compared to service tokens, such as the lack of renewal, revocation, listing, accessor, and cubbyhole features.Therefore, batch tokens should be used with caution and only when the trade-offs are acceptable.Reference: https://developer.hashicorp.com/vault/tutorials/tokens/batch-tokens1, https://developer.hashicorp.com/vault/docs/commands/token/create2, https://developer.hashicorp.com/vault/docs/concepts/tokens#token-types3

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The correct path for Vault backend functions, which include administrative actions, is /sys. The HashiCorp Vault documentation confirms: 'All backend system functions live in the /sys backend. Policies should take /sys into account when users need to administer Vault configurations.' This path hosts endpoints for system-level operations like mounting secrets engines, managing policies, and sealing/unsealing Vault.

Paths like /security, /admin, /vault, /system, and /backend are not standard for Vault's system backend. Only /sys provides the necessary administrative capabilities, making E the correct answer.

HashiCorp Vault Documentation - System Backend

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Vault supports auto-unseal to simplify operations. The HashiCorp Vault documentation states: 'Vault supports opt-in automatic unsealing via cloud technologies: AliCloud KMS, AWS KMS, Azure Key Vault, Google Cloud KMS, and OCI KMS,' and includes HSM and Transit as additional options. It explains: 'Auto unseal is used to automatically unseal Vault using an HSM or cloud HSM service.' The valid options are:

A (HSM): 'HSM (Hardware Security Module) can automatically unseal Vault by securely storing and managing the master key used for encryption and decryption operations.'

B (Azure KMS): 'Azure KMS can automatically unseal Vault by utilizing Azure Key Management Service to manage the master key.'

C (AWS KMS): 'AWS KMS can automatically unseal Vault upon the start of the service by using AWS Key Management Service to manage the master key.'

D (Transit): 'Transit can automatically unseal Vault by using a pre-configured encryption key stored in Vault itself to encrypt the unseal key.'

The documentation clarifies: 'Key Shards require the user to provide unseal keys to reconstruct the master key,' making E (Key Shards) a manual process, not auto-unseal. Thus, A, B, C, and D are correct.

HashiCorp Vault Documentation - Seal Configuration

HashiCorp Vault Documentation - Auto Unseal Tutorial

HashiCorp Vault Documentation - Seal Concepts: Auto Unseal

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For a long-running application that cannot handle token or secret regeneration, the Periodic Service Token is the most suitable choice. According to HashiCorp Vault documentation, periodic service tokens are renewable tokens that do not have a maximum Time-to-Live (TTL), meaning they can be renewed indefinitely by the client without requiring manual intervention or regeneration. This is ideal for applications needing continuous access to Vault over an extended period. The documentation states: 'Periodic tokens have a TTL, but no max TTL. Periodic tokens may live for an infinite amount of time, so long as they are renewed within their TTL.' This feature ensures uninterrupted operation for long-running processes, aligning perfectly with the scenario described.

In contrast, a Service Token with Use Limit has a finite number of uses before expiration, making it unsuitable for continuous access without regeneration. A Batch Token is designed for short-lived, one-time operations or batch processes, not persistent access, as it lacks renewability and has a fixed TTL. An Orphan Token, while not tied to a parent token, does not inherently address the regeneration issue and is less secure for long-term use due to its lack of association with policies or identity. Thus, the periodic service token stands out as the best fit.

HashiCorp Vault Documentation - Tokens: Periodic Tokens

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A: Denies all access to secret/apps/confidential, overriding the original policy's permissions. Correct.

B: Applies to all secret/*, overly restrictive and unclear with mixed capabilities. Incorrect.

C: Denies all secret/apps/*, blocking more than required. Incorrect.

D: Denies subpaths under confidential, not the path itself. Incorrect.

Overall Explanation from Vault Docs:

''A deny capability takes precedence over any allow... Use it to restrict specific paths.''