A team is designing a module that provisions a VPC with public and private subnets. The module should allow the caller to specify the CIDR blocks for the VPC and subnets, but the team also wants to provide sensible defaults. What is the best way to design the module's variables?

Use a single variable for the VPC CIDR and derive the subnet CIDRs from it.

Make all variables required, forcing the caller to specify every CIDR block.

Hardcode the CIDR blocks inside the module and expose them as outputs.

Define variables with default values for the CIDR blocks, allowing the caller to override them.

A team has refactored a configuration into modules and added `moved` blocks. They run `terraform plan` and see that a resource will be updated in place, but they are not sure if this is expected. What is the best way to determine if the update is safe?

Remove the `moved` block and run `terraform plan` again.

Review the plan output to see what attributes are changing.

Use `terraform state show` to inspect the current state.

Run `terraform apply` and hope for the best.

A team has moved a resource into a module and added a `moved` block. They run `terraform plan` and see no changes. What does this indicate?

The `moved` block is not working, and the resource will be destroyed on apply.

The module is not being used, and the resource is orphaned.

The resource was not moved, and the original is still in state.

The refactor is correct and the infrastructure is unchanged.

HashiCorp Certified:Terraform Authoring and Operations Professional

Domain 4Objective 4

4d TERRAFORM-AUTHORING-AND-OPERATIONS-PROFESSIONAL Practice Questions (Page 3)

Part of the Create, maintain, and use Terraform modules domain, which makes up ~13% of our current practice bank. HashiCorp does not publish an official question count, but from its 240-minute exam (~95–160 total, ~12–21 in this domain), expect 3–5 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

5concepts

Questions 11–15

11expert · hard
A team is designing a module that provisions a VPC with public and private subnets. The module should allow the caller to specify the CIDR blocks for the VPC and subnets, but the team also wants to provide sensible defaults. What is the best way to design the module's variables?
Select an answer first
12expert · hard
A team has refactored a configuration into modules and added `moved` blocks. They run `terraform plan` and see that a resource will be updated in place, but they are not sure if this is expected. What is the best way to determine if the update is safe?
Select an answer first
13foundation · easy
When refactoring state to reflect a modular structure, what is the recommended command to move a resource into a module's address?
Select an answer first
14application · medium
A team has moved a resource into a module and added a `moved` block. They run `terraform plan` and see no changes. What does this indicate?
Select an answer first
15foundation · easy
After refactoring a configuration into modules, what should be run to verify that the refactored configuration produces the same infrastructure as before?
Select an answer first

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4d TERRAFORM-AUTHORING-AND-OPERATIONS-PROFESSIONAL Practice Questions (Page 3)

Questions 11–15

A team is designing a module that provisions a VPC with public and private subnets. The module should allow the caller to specify the CIDR blocks for the VPC and subnets, but the team also wants to provide sensible defaults. What is the best way to design the module's variables?

A team has refactored a configuration into modules and added `moved` blocks. They run `terraform plan` and see that a resource will be updated in place, but they are not sure if this is expected. What is the best way to determine if the update is safe?

When refactoring state to reflect a modular structure, what is the recommended command to move a resource into a module's address?

A team has moved a resource into a module and added a `moved` block. They run `terraform plan` and see no changes. What does this indicate?

After refactoring a configuration into modules, what should be run to verify that the refactored configuration produces the same infrastructure as before?

Keep studying — Create, maintain, and use Terraform modules