- (Exam Topic 2)
You do not need to specify every required argument in the backend configuration. Omitting certain arguments may be desirable to avoid storing secrets, such as access keys, within the main configuration. When some or all of the arguments are omitted, we call this a ______.

1. A. First Time Configuration
2. B. Default Configuration
3. C. Changing Configuration
4. D. Partial Configuration
5. E. Incomplete Configuration

Correct Answer: D
You do not need to specify every required argument in the backend configuration. Omitting certain arguments may be desirable to avoid storing secrets, such as access keys, within the main configuration. When some or all of the arguments are omitted, we call this a partial configuration.
With a partial configuration, the remaining configuration arguments must be provided as part of the initialization process. There are several ways to supply the remaining arguments:
* Interactively: Terraform will interactively ask you for the required values, unless interactive input is disabled. Terraform will not prompt for optional values.
* File: A configuration file may be specified via the init command line. To specify a file, use the
-backend-config=PATH option when running terraform init. If the file contains secrets it may be kept in a secure data store, such as Vault, in which case it must be downloaded to the local disk before running Terraform.
* Command-line key/value pairs: Key/value pairs can be specified via the init command line. Note that many shells retain command-line flags in a history file, so this isn't recommended for secrets. To specify a single key/value pair, use the -backend-config="KEY=VALUE" option when running terraform init.
https://www.terraform.io/docs/backends/config.html#partial-configuration

- (Exam Topic 2)
Workspaces in Terraform provides similar functionality in the open-source, Terraform Cloud, and Enterprise versions of Terraform.

1. A. True
2. B. False

Correct Answer: B
https://www.terraform.io/docs/cloud/migrate/workspaces.html
Workspaces, managed with the terraform workspace command, aren't the same thing as Terraform Cloud's workspaces. Terraform Cloud workspaces act more like completely separate working directories; CLI workspaces are just alternate state files.

- (Exam Topic 1)
What command does Terraform require the first time you run it within a configuration directory?

1. A. terraform import
2. B. terraform init
3. C. terraform plan
4. D. terraform workspace

Correct Answer: B
terraform init command is used to initialize a working directory containing Terraform configuration files. Reference: https://www.terraform.io/docs/cli/commands/init.html

- (Exam Topic 1)
Only the user that generated a plan may apply it.

1. A. True
2. B. False

Correct Answer: B

- (Exam Topic 4)
Once a new Terraform backend is configured with a Terraform code block, which command(s) is (are) used to migrate the state file?

1. A. terraform apply
2. B. terraform push
3. C. terraform destroy, then terraform apply
4. D. terraform init

Correct Answer: B
https://www.terraform.io/cli/commands/state/push