4d TERRAFORM-AUTHORING-AND-OPERATIONS-PROFESSIONAL Practice Questions (Page 5)

Questions 21–24

1. 21application · medium

   After refactoring a configuration into modules, a team runs `terraform plan` and sees no changes. However, they are not confident that the refactor is correct. What is the best way to validate that the refactored configuration produces the same infrastructure?

   • ARun `terraform apply` and then `terraform plan` again to confirm no changes.
   • BCompare the output of `terraform show` before and after the refactor.
   • CRun `terraform validate` and `terraform fmt` to check for syntax errors.
   • DUse `terraform state list` to confirm all resources are present.
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2. 22application · medium

   A platform team has a monolithic Terraform configuration that provisions a VNet, a subnet, and a network security group (NSG) in the same file. They want to extract the NSG into a reusable module. After moving the NSG resource block into the module and adding the necessary variables and outputs, they run `terraform plan` and see that the NSG will be destroyed and recreated. What is the most likely cause and the correct fix?

   • AThe NSG was moved without copying its `name` attribute, causing a forced replacement. Copy the `name` attribute into the module's variables.
   • BThe resource address changed from `aws_security_group.main` to `module.nsg.aws_security_group.main`, so Terraform plans to replace it. Use `moved` blocks to map the old address to the new module address.
   • CThe module's source path is incorrect, so Terraform cannot find the existing resource. Correct the source path in the module block.
   • DThe module's output is not referenced in the root module, so Terraform sees the NSG as orphaned. Reference the module output in a root-level resource.
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4. 23foundation · easy

   Which of the following is an example of an output value that a module might expose after grouping related resources?

   • AThe ID of a resource created inside the module
   • BThe name of the module directory
   • CThe list of input variables defined in the module
   • DThe version of the Terraform provider
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5. 24foundation · easy

   Which of the following is a best practice when designing a module's outputs?

   • AUse outputs to store sensitive data in plain text
   • BExpose only the information that consumers of the module need
   • CAvoid using outputs to keep the module simple
   • DExpose all attributes of every resource in the module
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