The answer is to mark outputs as sensitive = true and mark variables as sensitive = true. These two practices directly address the core concern of Terraform secrets management: preventing sensitive values from leaking into logs, the console, and plan output. The sensitive flag works by redacting the value from CLI display, so while Terraform still processes the secret internally, it will appear as "(sensitive)" in plan output and after apply, rather than exposing the raw data. On the HashiCorp Terraform Associate TF-003 exam, this question tests your understanding that the sensitive flag is a display-level control, not a security encryption feature—a common trap is confusing it with state encryption or variable file storage. Remember that neither remote backend encryption nor storing secrets in terraform.tfvars hides values from plan output; only the sensitive flag does. Memory tip: think "sensitive = true" as a "redaction switch" for both variables and outputs—flip it on to keep secrets out of sight.
TF-003 Understand Terraform basics Practice Question
This TF-003 practice question tests your understanding of understand terraform basics. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 company is using Terraform to manage secrets in AWS Secrets Manager. They want to ensure that sensitive values are not exposed in logs, the console, or plan output. Which two practices should they implement? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the sensitive flag in variable definitions
Option A is correct because marking a variable as sensitive prevents its value from being displayed in CLI output. Option D is correct because marking outputs as sensitive hides the output value after apply. Option B is incorrect because storing in terraform.tfvars does not prevent exposure in plan output. Option C is incorrect because remote backend encryption protects state at rest, but not plan output. Option E is good practice but does not guarantee the secret is hidden from plan output; it may still appear in the plan unless the data source attribute is marked sensitive.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Use the sensitive flag in variable definitions
Why this is correct
Marks variables as sensitive, hiding values in plan/apply output.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use a remote backend with encryption
Why it's wrong here
Encrypts state at rest but does not affect plan output.
✗
Use a data source to fetch secrets at runtime instead of hardcoding
Why it's wrong here
Good practice but does not guarantee the secret is hidden; it may appear in plan unless the attribute is marked sensitive.
✗
Store variable values in terraform.tfvars file
Why it's wrong here
Does not hide values from plan output; they are still shown.
✓
Mark outputs as sensitive = true
Why this is correct
Hides output values from CLI after apply.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
Encrypts state at rest but does not affect plan output.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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
Got this wrong? Here's your next step.
Identify which TF-003 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Understand Terraform basics — This question tests Understand Terraform basics — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use the sensitive flag in variable definitions — Option A is correct because marking a variable as sensitive prevents its value from being displayed in CLI output. Option D is correct because marking outputs as sensitive hides the output value after apply. Option B is incorrect because storing in terraform.tfvars does not prevent exposure in plan output. Option C is incorrect because remote backend encryption protects state at rest, but not plan output. Option E is good practice but does not guarantee the secret is hidden from plan output; it may still appear in the plan unless the data source attribute is marked sensitive.
What should I do if I get this TF-003 question wrong?
Identify which TF-003 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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