Drag a concept onto its matching description — or click a concept then click the description.
Concepts
Matches
Success – no errors
Error – command failed
Error – CLI argument parsing error
Error – configuration errors
Error – state lock error
TF-004 Understand Terraform's purpose Practice Question
Match each Terraform error code to its meaning.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Exit code 0: Command succeeded without any error
Terraform exit codes indicate the result of command execution. Exit code 0 means success, 1 means general error, and 2 means usage error. The other codes are not defined by Terraform.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Exit code 0: Command succeeded without any error
Why this is correct
Exit code 0 is the universally recognized standard for indicating successful execution of a command or program in Unix-like operating systems. In Terraform, this means the command completed its intended operation without encountering any errors, whether it was initializing a backend, generating a plan, or successfully applying changes to infrastructure. Scripts and automation workflows rely on this code to proceed to subsequent steps or confirm successful completion.
- ✓
Exit code 1: General error during execution
Why this is correct
Exit code 1 signifies a general execution error, indicating that the command attempted to perform its primary function but encountered an unrecoverable problem during the process. This could range from a provider failing to authenticate, a resource failing to provision due to an API error, or an internal Terraform error that prevented successful completion. It signals an operational failure rather than an issue with the command's syntax.
- ✓
Exit code 2: Usage error, invalid command syntax
Why this is correct
Exit code 2 specifically denotes a usage error, meaning the command was invoked incorrectly due to invalid arguments, unknown flags, or improper syntax. Terraform returns this code when it cannot even begin to process the requested operation because the input itself is malformed or incomplete. This error prevents the command from reaching the stage where it would perform its core logic, indicating a user-side invocation issue.
- ✗
Exit code 0: General error during execution
Why it's wrong here
This option is incorrect because exit code 0 is the standard convention across operating systems to signify that a command has completed successfully without any errors. A general error during execution would inherently prevent a successful outcome, thus requiring a non-zero exit code to communicate failure. Terraform, like most well-behaved command-line tools, adheres to this fundamental principle.
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Exit code 2: Command succeeded without any error
Why it's wrong here
This option is incorrect as exit code 2 is specifically reserved for usage errors, indicating a problem with how the command was invoked, such as incorrect syntax or invalid arguments. It explicitly communicates a failure to parse or understand the command input, rather than a successful operation. Successful command execution is universally represented by an exit code of 0.
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Exit code 3: State lock error
Why it's wrong here
This option is incorrect because Terraform does not define or utilize exit code 3 for state lock errors or any other specific condition. While state lock errors are critical operational failures, Terraform typically reports such issues under the general error exit code 1. Relying on undefined exit codes can lead to brittle automation and misinterpretation of command outcomes.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This TF-004 practice question is part of Courseiva's free HashiCorp certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the TF-004 exam.