Question 76 of 428
TF-004 Remote State Locking Practice Question
A team uses Terraform Cloud for remote state management. They want to ensure that state file changes are only made through the Terraform Cloud API and not through direct access to the storage backend. Which feature should they enable?
⚠ Common exam trap
The trap is that many candidates assume Sentinel policy enforcement is needed to prevent direct state modifications, but Terraform Cloud's remote backend automatically uses state locking, which ensures only API-based changes are possible.
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
✓
Remote state locking
Remote state locking ensures that only one operation can modify the Terraform state at a time. When using Terraform Cloud as the remote backend, locking is automatically managed and prevents any direct modifications to the state file outside of a Terraform run. Because Terraform Cloud handles locking through its API, any attempt to directly access the storage backend would fail to acquire a lock, thus preventing changes. This effectively enforces that all state modifications go through the Terraform Cloud API.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Sentinel policy enforcement
Why it's wrong here
Sentinel policy enforcement evaluates compliance rules against a Terraform plan or run, determining whether an operation is allowed to proceed based on defined policies. While Sentinel can prevent non-compliant infrastructure changes from being applied, it operates *within* the context of a Terraform Cloud run. It does not, however, prevent or control direct access to the underlying state file storage if someone were to attempt to bypass the Terraform Cloud API and manipulate the state directly.
- ✓
Remote state locking
Why this is correct
Remote state locking is a critical mechanism within Terraform Cloud that ensures state modifications occur exclusively through its controlled API. When a Terraform operation (like a plan or apply) begins, Terraform Cloud acquires a lock on the state, preventing concurrent modifications and ensuring consistency. This lock is managed by Terraform Cloud, effectively forcing all state-altering operations to pass through its API, thereby preventing any direct, uncontrolled access or modification of the state file.
- ✗
VCS integration
Why it's wrong here
VCS integration primarily automates Terraform runs by connecting to a version control system and triggering operations based on code changes. While it streamlines the workflow, it does not inherently control or restrict direct access to the underlying state storage backend itself. Its function is to link source code to execution, not to enforce exclusive API-based modification of the state file.
- ✗
Team tokens
Why it's wrong here
Team tokens provide authentication credentials for programmatic access to the Terraform Cloud API, allowing users or systems to interact with workspaces, runs, and state via the API. However, these tokens are for *using* the API, not for *preventing* direct manipulation of the state file if an alternative, unauthorized method of accessing the storage backend were available. They facilitate API access rather than enforcing it as the sole interaction method.
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Last reviewed: Jun 30, 2026
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