Quick Answer
The answer is `terraform import`. This command is the correct choice because it is the dedicated mechanism for bringing an existing infrastructure resource, such as an AWS EC2 instance, under Terraform management by mapping it into the state file without altering the live resource itself. The command requires two arguments: the resource address defined in your configuration (e.g., `aws_instance.my_instance`) and the provider-specific resource ID (e.g., `i-1234567890abcdef0`), which Terraform uses to attach the real-world object to the corresponding state entry. On the HashiCorp Terraform Associate TF-003 exam, this question tests your understanding of state management versus resource provisioning—a common trap is confusing `terraform import` with `terraform apply`, but remember that import only updates state, not infrastructure. A useful memory tip: think of "import" as "importing the ID into state"—you are pulling the existing resource into Terraform’s control, not creating or modifying it.
This TF-003 practice question tests your understanding of implement and maintain state. 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.
A developer is working on a Terraform configuration that manages a single resource. They want to import an existing AWS EC2 instance into state. Which command should they use?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "which command"
Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
terraform apply
Why wrong: terraform apply provisions resources, does not import.
terraform refresh
Why wrong: terraform refresh updates state with real-world data but does not import new resources.
terraform import
terraform import is the command to import existing resources into state.
terraform state mv
Why wrong: terraform state mv moves items within state, does not import.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
terraform import
Option C is correct because `terraform import` is the dedicated command for bringing an existing infrastructure resource (like an AWS EC2 instance) under Terraform management by attaching it to a resource block in the state file. It requires the resource address and the provider-specific ID (e.g., `aws_instance.my_instance i-1234567890abcdef0`) to map the real-world resource into the Terraform state without modifying the resource itself.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
terraform apply
Why it's wrong here
terraform apply provisions resources, does not import.
terraform refresh
Why it's wrong here
terraform refresh updates state with real-world data but does not import new resources.
terraform import
Why this is correct
terraform import is the command to import existing resources into state.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
terraform state mv
Why it's wrong here
terraform state mv moves items within state, does not import.
Common exam traps
HashiCorp often tests the distinction between `terraform import` (which only updates state) and `terraform apply` (which modifies infrastructure), so the trap here is that candidates mistakenly think `terraform apply` can also import resources because it can create new ones, but it cannot attach to an existing resource that is not already in state.
Trap categories for this question
Real-world vs exam trap
terraform refresh updates state with real-world data but does not import new resources.
Detailed technical explanation
Under the hood, `terraform import` performs a read-only API call to the provider (e.g., AWS EC2 DescribeInstances) to fetch the current attributes of the resource and writes them into the state file at the specified address. A subtle behavior is that the configuration file must already contain a matching resource block; if the block is missing or mismatched, the import will succeed but a subsequent `terraform plan` will show changes because the configuration does not align with the imported state. In real-world scenarios, this is critical for migrating existing infrastructure into Terraform without downtime, as the resource is never modified during the import process.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Implement and maintain state — study guide chapter
Learn the concepts, then practise the questions
Implement and maintain state practice questions
Targeted practice on this topic area only
All TF-003 questions
519 questions across all exam domains
HashiCorp Terraform Associate TF-003 study guide
Full concept coverage aligned to exam objectives
TF-003 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise TF-003 questions linked to Understand IaC concepts.
Practise TF-003 questions linked to Understand Terraform basics.
Practise TF-003 questions linked to Understand Terraform's purpose.
Practise TF-003 questions linked to Use Terraform outside the core workflow.
Practise TF-003 questions linked to Interact with Terraform modules.
Practise TF-003 questions linked to Use the core Terraform workflow.
Practise TF-003 questions linked to Implement and maintain state.
Practise TF-003 questions linked to Read, generate and modify configuration.
Practise TF-003 questions linked to TF-003 fundamentals.
Practise TF-003 questions linked to TF-003 scenario.
Practise TF-003 questions linked to TF-003 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Implement and maintain state — This question tests Implement and maintain state — Read the scenario before looking for a memorised answer..
The correct answer is: terraform import — Option C is correct because `terraform import` is the dedicated command for bringing an existing infrastructure resource (like an AWS EC2 instance) under Terraform management by attaching it to a resource block in the state file. It requires the resource address and the provider-specific ID (e.g., `aws_instance.my_instance i-1234567890abcdef0`) to map the real-world resource into the Terraform state without modifying the resource itself.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.