Free Practice Questions for HashiCorp VA-002-P Exam

Most of the important features of Vault are available in the open-source version, however, some of the features which are generally required by large organizations are only available in the Enterprise version such as:-

- MFA - Multi-factor Authentication

- Replication

- Auto unseal with HSM and many more.

Check all the features at the below link.

Reference link:- https://www.hashicorp.com/products/vault/pricing/

Output values are like the return values of a Terraform module and have several uses such as a child module using those outputs to expose a subset of its resource attributes to a parent module.

Vault does not integrate with any VCS (Version Control System) to checkout or read code. However, It can use GitHub as an auth method.

Multiple provider blocks can exist if a Terraform configuration is composed of multiple providers, which is a common situation. To add multiple providers in your configuration, declare the providers, and create resources associated with those providers.

Replication relies on having a shared keyring between primary and secondaries and a shared understanding of the data store state.

As soon as replication is enabled, all of the secondary's existing data will be destroyed, which is irrevocable.

Generally, activating as a secondary will be the first thing that is done upon setting up a new cluster for replication.

Hence, create a backup first if there is a slight chance that you would need this existing storage in the future.

Reference link:- https://www.hashicorp.com/resources/setting-up-configuring-performance-replication/

Environment variables can be used to set variables. The environment variables must be in the format TF_VAR_name and this will be checked last for a value. For example:

export TF_VAR_region=us-west-1

export TF_VAR_ami=ami-049d8641

export TF_VAR_alist='[1,2,3]'

export TF_VAR_amap='{ foo = "bar", baz = "qux" }'

https://www.terraform.io/docs/commands/environment-variables.html

The -prefix flag treats the ID as a prefix instead of an exact lease ID. This can revoke multiple leases simultaneously.

After authenticating, a client is issued a security token which is associated with a policy. That token is used to make a subsequent request to Vault, such as read, write, etc.

The encryption key used to encrypt the plaintext is regarded as a data key. This data key needs to be protected so that your encrypted data cannot be decrypted comfortably by an unauthorized party. In this case, data has been encrypted by specifying the keyring name creditcard.

Within each datacenter, we have a mixture of clients and servers. It is expected that there be between three to five servers. This strikes a balance between availability in the case of failure and performance, as consensus gets progressively slower as more machines are added. However, there is no limit to the number of clients, and they can easily scale into the thousands or tens of thousands.

Server or Leader - It indicates whether the agent is running in server or client mode. Server nodes participate in the consensus quorum, storing cluster state, and handling queries. At any given time, the peer set elects a single node to be the leader. The leader is responsible for ingesting new log entries, replicating to followers, and managing when an entry is considered committed.

Client or Follower - Client nodes make up the majority of the cluster, and they are very lightweight as they interface with the server nodes for most operations and maintain a very little state of their own.

Reference link:- https://www.consul.io/docs/internals/architecture.html