HashiCorp Certification Guides

This section collects HashiCorp Terraform certification guides on TechExamLexicon.com. The current active entry point here is Terraform Associate 004. The older Terraform Associate 003 page remains as a legacy-transfer guide so older links still route correctly and older notes still map to the current exam language.

Start with the current exam guide, then use the study plan for pacing, the cheat sheet for Terraform workflow recall, the FAQ for exam logistics, and the resources page for Terraform references.

In this section

• Legacy Terraform Associate 003 Material
  Legacy Terraform Associate 003 material being consolidated into the current Terraform technical reference.
  • Legacy Terraform Foundations
    Legacy Terraform foundations material consolidated into the current Terraform infrastructure-as-code and provider references.
  • Legacy Terraform Workflow
    Legacy Terraform workflow material consolidated into the current Terraform workflow references.
  • Legacy Terraform Configuration
    Legacy Terraform configuration material consolidated into the current Terraform configuration references.
  • Legacy Terraform Modules
    Legacy Terraform module material consolidated into the current Terraform module references.
  • Legacy Terraform State
    Legacy Terraform state material consolidated into the current Terraform state and maintenance references.
  • Legacy HCP Terraform Material
    Legacy HCP Terraform material consolidated into the current HCP Terraform references.
• Terraform Technical Reference
  A practical technical reference to Terraform configuration, state, workflow, modules, and HCP Terraform.
  • Terraform Infrastructure as Code
    Reference entries explaining Terraform’s declarative infrastructure-as-code model and multi-provider workflow.
    • Terraform and Infrastructure as Code
      How HashiCorp Terraform uses declarative configuration, plans, and state to manage infrastructure as code.
    • Terraform Multi-Provider Workflows
      How Terraform uses providers to manage multiple cloud, SaaS, and on-premises platforms through one declarative workflow.
  • Terraform Fundamentals
    Reference entries on Terraform provider requirements, provider configurations, aliases, and state.
    • Terraform Provider Requirements and Lock Files
      How Terraform declares provider source addresses and version constraints, and records selected provider packages in its dependency lock file.
    • Terraform Provider Aliases and State
      How Terraform uses provider aliases for multiple configurations and state to map configuration addresses to remote objects.
  • Terraform Workflow
    Reference entries covering Terraform working-directory preparation, plans, applies, and resource dependencies.
    • Terraform Init, Format, and Validate
      The distinct roles of terraform init, terraform fmt, and terraform validate in a Terraform configuration workflow.
    • Terraform Plans, Applies, and Destroys
      How Terraform previews changes with plans, performs approved changes with apply, and removes managed resources with destroy.
    • Terraform Resource Dependencies
      How Terraform infers resource dependencies from expressions and when an explicit depends_on relationship is appropriate.
  • Terraform Configuration
    Reference entries on Terraform resources, data sources, module values, expressions, validation, lifecycle, and sensitive data.
    • Terraform Resources, Data Sources, and References
      How Terraform manages infrastructure with resource blocks, reads existing information with data sources, and connects values with references.
    • Terraform Variables, Outputs, and Types
      How Terraform modules accept typed inputs, reuse local values, and expose selected results through outputs.
    • Terraform Expressions and Dynamic Blocks
      How Terraform expressions compute values and when dynamic blocks help generate repeated nested configuration.
    • Terraform Validation, Lifecycle, and Sensitive Data
      How Terraform validates inputs, controls replacement lifecycle, and limits exposure of sensitive or temporary values.
  • Terraform Modules
    Reference entries on Terraform module sources, reusable interfaces, and controlled module version upgrades.
    • Terraform Module Sources and Interfaces
      How Terraform modules package reusable configuration and expose a stable interface through inputs and outputs.
    • Terraform Module Versions
      How Terraform callers constrain registry module versions and review module upgrades independently of provider lock files.
  • Terraform State Management
    Reference entries on Terraform state, backends, remote locking, drift detection, refresh-only reconciliation, and refactoring.
    • Terraform State and Backends
      What Terraform state records, how a backend stores it, and why state storage needs security and collaboration controls.
    • Terraform Remote State and Locking
      How a Terraform remote backend supports shared state, and why locking must be verified for the selected backend.
    • Terraform Drift and State Refactoring
      How Terraform detects out-of-band infrastructure drift and preserves resource identity during configuration refactors.
  • Terraform Maintenance
    Reference entries on adopting existing infrastructure, inspecting Terraform state, and diagnosing Terraform operations.
    • Terraform Import and State Inspection
      How Terraform adopts an existing remote object into state and how to inspect recorded resource addresses safely.
    • Terraform Troubleshooting and Logging
      A layered approach to Terraform troubleshooting, including plan review, state inspection, provider errors, and diagnostic logging.
  • HCP Terraform
    Reference entries on HCP Terraform workspaces, remote operations, governance, dynamic credentials, projects, and variable sets.
    • HCP Terraform Workspaces and Remote Operations
      How HCP Terraform workspaces organize a collection of infrastructure and run Terraform remotely in a shared execution environment.
    • HCP Terraform Governance and Policy
      How HCP Terraform applies access controls, policy checks, and dynamic provider credentials around shared infrastructure runs.
    • HCP Terraform Projects, Variable Sets, and Run Triggers
      How HCP Terraform groups workspaces into projects, shares scoped variables, and coordinates dependent workspace runs.
  • Terraform Workflow and State Quick Reference
    A compact reference to Terraform workflow stages, state boundaries, providers, backends, modules, and HCP Terraform.
  • Terraform Documentation
    Primary HashiCorp documentation for Terraform language, state, modules, providers, and HCP Terraform.
  • Terraform Glossary
    Short definitions for Terraform workflow, configuration, state, module, and HCP Terraform terms.