5b Describe Variable Scope Within Modules TERRAFORM-ASSOCIATE-004 Practice Questions (Page 1)

Questions 1–5

1. 1expert · medium

   A module creates an IAM role and defines `output "role_name" { value = aws_iam_role.this.name }`. The root configuration uses `module.iam.role_name` in a policy attachment. A colleague refactors the module to compute the role name via a local value `local.role_name` and updates the output to `value = local.role_name`. What is the impact on the root configuration?

   • AThe root configuration must be updated to reference `module.iam.role_name_local`.
   • BThe root configuration continues to work because the output name is unchanged.
   • CThe root configuration breaks because locals cannot be used in outputs.
   • DThe root configuration must be updated to use `module.iam.local.role_name`.
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2. 2foundation · easy

   In Terraform, where can a variable declared inside a module be referenced?

   • AIn the module and in any module that calls it
   • BOnly within the module where it is declared
   • COnly in the root module, regardless of where it is declared
   • DAnywhere in the root module and in all child modules
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4. 3foundation · easy

   What is the only way for a calling configuration to access a value computed inside a module?

   • ABy using `module.<name>.var.<variable>`
   • BBy referencing the module's variables
   • CBy using the module's output values
   • DBy reading the module's source code
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5. 4expert · medium

   A module defines `locals { ami_id = data.aws_ami.ubuntu.id }` and uses it in an EC2 instance resource. The root configuration needs the same AMI ID to create a launch template. What is the correct approach?

   • AReference `module.ec2.ami_id` directly in the root.
   • BAdd `output "ami_id" { value = local.ami_id }` to the module.
   • CDuplicate the data source in the root configuration.
   • DMove the local to a variable and pass it back.
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6. 5application · medium

   A module defines a local value `tags = { Team = "Platform" }` and uses it in a resource. The root configuration wants to reuse the same `tags` map for a resource it creates directly. What is the correct way to make the module's local value available to the root configuration?

   • AMove the local value to the root configuration and pass it into the module as a variable.
   • BDeclare an output in the module that exposes the local value.
   • CUse `data.terraform_remote_state` to read the module's local value.
   • DReference `module.example.tags` directly in the root resource.
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