HashiCorp Updated HCVA0-003 Exam Questions and Answers by luan

Integrated Storage is a Raft-based storage backend that allows Vault to store its data internally without relying on an external storage system. It also enables Vault to run in high availability mode with automatic leader election and failover. However, Integrated Storage is not immune to data loss or corruption due to hardware failures, network partitions, or human errors. Therefore, it is recommended to use the snapshot feature to backup and restore the Vault data periodically or on demand. A snapshot is a point-in-time capture of the entire Vault data, including the encrypted secrets, the configuration, and the metadata. Snapshots can be taken and restored using the vault operator raft snapshot command or the sys/storage/raft/snapshot API endpoint. Snapshots are encrypted and can only be restored with a quorum of unseal keys or recovery keys.  Snapshots are also portable and can be used to migrate data between different Vault clusters or storage backends. References: https://developer.hashicorp.com/vault/docs/concepts/integrated-storage 1 , https://developer.hashicorp.com/vault/docs/commands/operator/raft/snapshot 2 , https://developer.hashicorp.com/vault/api-docs/system/storage/raft/snapshot 3

The Key/Value secrets engine is a static secrets engine, not a dynamic one. KV stores arbitrary secret values in Vault’s configured storage backend and returns those stored values when requested. KV version 1 stores the latest value for a key, while KV version 2 adds versioning, metadata, soft delete, undelete, and destroy behavior. Dynamic secrets are different: they are generated on demand, usually have leases, and can be automatically revoked when their TTL expires. Examples include database credentials, cloud credentials, and similar generated secrets. Because KV stores existing values rather than generating new credentials dynamically from an external system, it is not a dynamic secrets engine. HashiCorp describes KV as a generic key-value store used to store arbitrary secrets.

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The Vault seal configuration can be set in two ways: through the Vault configuration file or through environment variables. The Vault configuration file is a text file that contains the settings and options for Vault, such as the storage backend, the listener, the telemetry, and the seal. The seal stanza in the configuration file specifies the seal type and the parameters to use for additional data protection, such as using HSM or Cloud KMS solutions to encrypt and decrypt the root key. The seal configuration can also be set through environment variables, which will take precedence over the values in the configuration file. The environment variables are prefixed with VAULT_SEAL_ and followed by the seal type and the parameter name. For example, VAULT_SEAL_AWSKMS_REGION sets the region for the AWS KMS seal. References:  Seals - Configuration | Vault | HashiCorp Developer ,  Environment Variables | Vault | HashiCorp Developer

The statement is true. When an auth method is disabled, all users authenticated via that method lose access. This is because the tokens issued by the auth method are automatically revoked when the auth method is disabled. This prevents the users from performing any operation in Vault using the revoked tokens. To regain access, the users have to authenticate again using a different auth method that is enabled and has the appropriate policies attached. References:  Auth Methods | Vault | HashiCorp Developer ,  auth disable - Command | Vault | HashiCorp Developer