4c TERRAFORM-AUTHORING-AND-OPERATIONS-PROFESSIONAL Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   Your team maintains a Terraform module that has grown to over 1,000 lines of code. The module creates a complete environment, including VPC, subnets, EC2 instances, and security groups. You want to refactor the module to make it easier to test and maintain. What is the most effective refactoring strategy?

   • ABreak the module into smaller, focused modules and use a root module to compose them.
   • BAdd comments and documentation to the existing module to make it easier to understand.
   • CUse `terraform fmt` to format the code and make it more readable.
   • DCreate a new module from scratch and migrate all consumers to it.
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2. 7foundation · easy

   A module is versioned using semantic versioning. The maintainer releases version `2.1.0`. What does the `1` in this version indicate?

   • AA backward-incompatible major change
   • BA pre-release version
   • CA backward-compatible bug fix
   • DA backward-compatible minor feature addition
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4. 8application · medium

   You maintain a Terraform module published to a private registry. You need to change the module's output `instance_ip` to `instance_public_ip` because the current name is ambiguous. Several internal teams use this module. What is the recommended strategy to manage this change?

   • AKeep the old output and add the new one, then remove the old output in the next minor version.
   • BImmediately rename the output and publish a new patch version, then notify all teams to update their references.
   • CPublish a new major version with the renamed output and add a deprecated alias output `instance_ip` that references the new one.
   • DChange the output name in the module source and update the registry's default version to force all consumers to use the new name.
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5. 9application · medium

   Your team maintains a Terraform module that provisions an AWS S3 bucket. The module currently has a single variable `bucket_name` and no outputs. You want to refactor the module to expose the bucket ARN as an output. What is the most appropriate way to do this?

   • AAdd an output block that references the ARN attribute of the S3 bucket resource.
   • BUse a local value to store the ARN and reference it in the output.
   • CCreate a data source to retrieve the bucket ARN and output it.
   • DChange the `bucket_name` variable to accept an ARN instead of a name.
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6. 10application · medium

   Your team has a monolithic Terraform module that provisions a web application, including networking, compute, and database resources. The module is becoming difficult to maintain, and different teams want to reuse only the networking portion. You decide to refactor the module. What is the most effective refactoring approach?

   • AAdd feature flags to the existing module to conditionally create networking resources.
   • BSplit the module into separate child modules for networking, compute, and database, and have the parent module compose them.
   • CDuplicate the networking resources into a new standalone module and leave the original module unchanged.
   • DMove all resources into a single new module and delete the old module, requiring all consumers to update.
   Reveal Solution Discussion Select an answer first