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Quick Answer
The answer is that all four statements about the core Terraform workflow phases—Write, Plan, Apply—are correct, including the claim that running `terraform plan` is strictly optional before `terraform apply`. This is correct because the core workflow is designed with flexibility: the Write phase defines infrastructure in `.tf` files, the Plan phase generates an execution plan for review, and the Apply phase executes changes. Crucially, if you run `terraform apply` without a pre-generated plan (e.g., from `terraform plan -out`), Terraform automatically creates and executes a new plan in one step, making the separate `plan` command optional but highly recommended for safety. On the HashiCorp Terraform Associate TF-003 exam, this question tests your understanding of workflow mechanics versus best practices—a common trap is assuming `plan` is mandatory. Remember the memory tip: "Plan is optional, but wise; Apply can auto-generate in disguise."
TF-003 Use the core Terraform workflow Practice Question
This TF-003 practice question tests your understanding of use the core terraform workflow. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which of the following statements about the core Terraform workflow (Write, Plan, Apply) are correct? (Choose all that apply. There are four correct answers.)
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
✓
The `terraform plan` command creates an execution plan showing what actions Terraform will take to reach the desired state described in the configuration.
The core Terraform workflow consists of three phases: Write, Plan, and Apply. During the Write phase, you define your desired infrastructure in `.tf` configuration files, which can include variables, data sources, and modules. The `terraform plan` command creates an execution plan that shows what actions Terraform will take to reach that desired state. The `terraform apply` command can use a saved plan from `terraform plan -out` without additional flags, or if no plan is provided, it will automatically generate and execute a new plan. This workflow ensures that changes are reviewed before being applied, reducing the risk of unintended modifications.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Common exam traps
Common exam trap: answer the scenario, not the keyword
HashiCorp often tests the misconception that `terraform plan` modifies the state file or that `terraform apply` always requires a separate plan command, when in fact `terraform apply` can generate and execute a plan automatically if none is provided.
Detailed technical explanation
How to think about this question
Under the hood, `terraform plan` compares the current state (stored in `terraform.tfstate`) with the desired configuration and generates a diff of create, update, or destroy actions. The plan is saved as a binary file when using `-out`, which can later be applied exactly as reviewed. In real-world scenarios, using `terraform plan -out=tfplan` followed by `terraform apply tfplan` is a best practice for CI/CD pipelines, ensuring that the exact plan reviewed is the one executed, preventing drift from concurrent changes.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the TF-003 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Questions learners often ask
What does this TF-003 question test?
Use the core Terraform workflow — This question tests Use the core Terraform workflow — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The `terraform plan` command creates an execution plan showing what actions Terraform will take to reach the desired state described in the configuration. — The core Terraform workflow consists of three phases: Write, Plan, and Apply. During the Write phase, you define your desired infrastructure in `.tf` configuration files, which can include variables, data sources, and modules. The `terraform plan` command creates an execution plan that shows what actions Terraform will take to reach that desired state. The `terraform apply` command can use a saved plan from `terraform plan -out` without additional flags, or if no plan is provided, it will automatically generate and execute a new plan. This workflow ensures that changes are reviewed before being applied, reducing the risk of unintended modifications.
What should I do if I get this TF-003 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Same concept, more angles
2 more ways this is tested on TF-003
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which TWO actions are part of the core Terraform workflow? (Choose two.)
medium- A.terraform fmt
- ✓ B.terraform plan
- C.terraform validate
- ✓ D.terraform apply
- E.terraform destroy
Why B: The core Terraform workflow consists of three main steps: `terraform init` to initialize the working directory, `terraform plan` to preview changes, and `terraform apply` to execute those changes. Option B (`terraform plan`) is correct because it creates an execution plan showing what actions Terraform will take to reach the desired state defined in configuration files. Option D (`terraform apply`) is correct because it applies the changes required to reach the desired state, either by using a previously generated plan or by creating a new plan and prompting for approval.
Variation 2. Which TWO actions are part of the core Terraform workflow? (Select TWO.)
medium- A.Create infrastructure manually via cloud console
- ✓ B.Write Terraform configuration files
- ✓ C.Review the execution plan
- D.Commit changes to version control
- E.Run unit tests on the configuration
Why B: The core workflow consists of: Write (author config), Plan (review changes), Apply (execute). Options that match are 'Write configuration' and 'Review execution plan'.
Last reviewed: Jun 30, 2026
This TF-003 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-003 exam.
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