Free Practice Questions for HashiCorp Terraform Authoring and Operations Professional Certification

This subdomain covers the process of preparing a working directory for other Terraform commands.

- Initialization overview - init CLI command

This subdomain covers creating an execution plan, which lets you preview the changes that Terraform plans to make to your infrastructure.

- plan CLI command

This subdomain covers executing the actions proposed in a Terraform plan to create, update, or destroy infrastructure.

- apply CLI command

This subdomain covers the command used to destroy all of the remote objects managed by a particular Terraform configuration.

- destroy CLI command

This subdomain covers the management of Terraform's state file, which is used to map real-world resources to your configuration, keep track of metadata, and improve performance for large infrastructures.

- State overview - import blocks - moved blocks - CLI documentation

This subdomain covers using Terraform's built-in features to ensure that configurations are syntactically valid and conform to specified constraints and conditions.

- Tests - Checks - Input variables - Type constraints - Custom conditions

This subdomain covers the use of data sources to fetch information from an API or another Terraform configuration, making it available for use elsewhere in your configuration.

- Data sources

This subdomain covers the use of built-in functions in the HashiCorp Configuration Language (HCL) to transform and combine values within a configuration.

- Functions

This subdomain covers meta-arguments, which are special arguments that can be used with any resource to change its behavior, such as `count`, `for_each`, `provider`, `depends_on`, and `lifecycle`.

- Resources

This subdomain covers defining input variables to parameterize configurations and using output values to expose information about the managed infrastructure, including the use of complex data types like lists, maps, and objects.

- Variables and outputs - Types and values - Expressions

This subdomain covers strategies for handling sensitive information like passwords, API keys, and certificates within Terraform configurations, including integration with external secret management tools.

- Sensitive data in state

This subdomain covers best practices for ensuring consistent and predictable behavior across different environments and team members by explicitly defining versions for Terraform, providers, and modules.

- terraform blocks - Version constraints - Dependency lock file

This subdomain covers storing the Terraform state file in a remote, shared location, which is essential for collaboration and for running Terraform in automated environments.

- Remote state

This subdomain covers integrating Terraform into CI/CD pipelines, including the use of state locking to prevent concurrent modifications to the same state file.

- Configuring state locking

This subdomain covers methods for sharing information between different Terraform configurations or workspaces, allowing for the creation of modular and loosely coupled infrastructure components.

- The terraform_remote_state data source - tfe_outputs data source

This subdomain covers the fundamentals of creating reusable Terraform modules to encapsulate and abstract infrastructure components, following recommended design patterns for clarity and maintainability.

- Modules documentation - Creating a module - Module design recommended patterns

This subdomain covers how to call a module from a parent configuration, including sourcing modules from various locations like the Terraform Registry, Git repositories, or local paths.

- Sourcing a module - Declaring a module

This subdomain covers the process of modifying and improving existing modules while managing changes through versioning to ensure that downstream configurations are not broken unexpectedly.

- Refactoring modules - Version constraints

This subdomain covers the process of breaking down a monolithic Terraform configuration into smaller, reusable modules to improve organization, reusability, and maintainability.

- moved blocks

This subdomain covers the core concept of how Terraform uses providers as plugins to interact with the APIs of various cloud platforms, SaaS providers, and other services.

- Providers

This subdomain covers the detailed configuration of providers within a Terraform block, including using aliases for multiple provider configurations, pinning versions for stability, and managing the provider upgrade process.

- Provider requirements - Provider configuration - Dependency lock file - Configuring providers in modules

This subdomain covers the various methods for authenticating Terraform providers with their target APIs, such as static credentials, environment variables, or temporary credentials from identity providers.

- Provider configuration

This subdomain covers techniques for diagnosing and resolving issues related to Terraform providers, including debugging Terraform's execution and managing dependency conflicts using the lock file.

- Dependency lock file - Debugging Terraform

This subdomain covers the workflow for executing Terraform runs within HCP Terraform, including remote operations, different run modes, and the process of migrating existing configurations to HCP Terraform.

- Remote operations - Viewing and managing runs - Run modes and options - Migrating to HCP Terraform

This subdomain covers the concept of workspaces in HCP Terraform as a way to manage separate instances of a configuration, including their settings and access control.

- Workspaces documentation

This subdomain covers the secure management of provider credentials within HCP Terraform, using features like workspace variables and dynamic provider credentials to avoid hardcoding secrets.

- Workspace variables - Dynamic provider credentials

This subdomain covers the use of Sentinel or Open Policy Agent (OPA) within HCP Terraform to enforce policies and governance rules on infrastructure changes before they are applied.

- Policy enforcement