4b Refer to Resource Attributes and Create Cross-Resource References TERRAFORM-ASSOCIATE-004 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   Which statement accurately describes implicit dependencies in Terraform?

   • AThey must be declared using the `depends_on` argument in every resource.
   • BThey are automatically created when one resource references an attribute of another resource.
   • CThey are created only when resources are in different modules.
   • DThey are determined by the order resources appear in the configuration file.
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2. 2expert · hard

   A team is using Terraform to manage infrastructure across multiple environments (dev, staging, prod). They have a configuration that creates a VPC and a subnet. The subnet references the VPC ID. In the dev environment, they want to skip the subnet creation. What is the best way to conditionally create the subnet while maintaining the dependency?

   • AUse a count meta-argument on the subnet resource with a conditional expression that evaluates to 1 or 0 based on the environment.
   • BRemove the subnet resource from the configuration for the dev environment.
   • CUse a variable to toggle the subnet creation and wrap the resource in an if statement.
   • DCreate the subnet in all environments and use a null_resource to skip it in dev.
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4. 3foundation · easy

   In a Terraform configuration, resource B references an attribute of resource A. How does Terraform handle the order of operations?

   • ATerraform automatically creates a dependency, so resource A is created before resource B.
   • BTerraform creates both resources in parallel because they are in the same configuration.
   • CTerraform creates resource B first, then resource A, because B is defined later in the file.
   • DTerraform requires an explicit `depends_on` argument to order the resources.
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5. 4application · hard

   A developer is writing a Terraform configuration for a Google Cloud storage bucket. They need to set the bucket's location to the same region as a compute instance. Which expression correctly references the instance's zone to derive the region?

   • Alocation = var.region
   • Blocation = "${split("-", google_compute_instance.main.zone)[0]}-${split("-", google_compute_instance.main.zone)[1]}"
   • Clocation = google_compute_instance.main.region
   • Dlocation = google_compute_instance.main.zone
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6. 5application · medium

   A team is managing a Terraform configuration that creates an Azure virtual network and a subnet. The subnet references the VNet's name. During terraform plan, the team sees that the VNet will be updated before the subnet. What is the reason for this order?

   • AThe VNet is updated first because it was defined first in the configuration file.
   • BThe subnet references the VNet's name, creating an implicit dependency that requires the VNet to be updated first.
   • CTerraform always updates resources in alphabetical order.
   • DThe subnet is smaller, so it is updated after the VNet.
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