This TF-003 practice question tests your understanding of use terraform outside the core 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.
A company uses Terraform Cloud and wants to ensure that only approved modules from the private registry are used in configurations. How can they enforce this?
Restrict module sources in VCS
Why wrong: Cannot enforce at runtime; developers can bypass.
Configure workspace variables to limit module paths
Why wrong: Workspace variables cannot restrict module sources.
Use Sentinel policies to check module sources
Sentinel inspects module source attributes and can block runs.
Use run tasks to scan for module types
Why wrong: Run tasks are for external integration, not for policy enforcement.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use Sentinel policies to check module sources
Sentinel policies can inspect module declarations and block runs if modules come from unapproved sources. VCS restrictions are not always effective. Run tasks and workspace variables do not directly control module sources.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Restrict module sources in VCS
Why it's wrong here
Cannot enforce at runtime; developers can bypass.
Configure workspace variables to limit module paths
Why it's wrong here
Workspace variables cannot restrict module sources.
Use Sentinel policies to check module sources
Why this is correct
Sentinel inspects module source attributes and can block runs.
Related concept
Static NAT maps one inside address to one outside address.
Use run tasks to scan for module types
Why it's wrong here
Run tasks are for external integration, not for policy enforcement.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related TF-003 NAT questions on configuration and troubleshooting.
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FAQ
Use Terraform outside the core workflow — This question tests Use Terraform outside the core workflow — Static NAT maps one inside address to one outside address..
The correct answer is: Use Sentinel policies to check module sources — Sentinel policies can inspect module declarations and block runs if modules come from unapproved sources. VCS restrictions are not always effective. Run tasks and workspace variables do not directly control module sources.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related TF-003 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 24, 2026
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