4f Define Resource Dependencies in Configuration TERRAFORM-ASSOCIATE-004 Practice Questions (Page 2)

Questions 6–10

1. 6expert · hard

   A team is using Terraform to provision a database and an application. The application's configuration file (created by a local_file resource) contains the database's connection string. The connection string is built using a template that references the database resource. The team notices that the local_file is sometimes created before the database. What is the most likely cause?

   • AThe connection string is passed to the template as a variable, so Terraform cannot trace the dependency back to the database resource.
   • BThe local_file resource does not support dependencies on other resources.
   • CThe template file uses a templatefile() function, which does not create dependencies.
   • DThe database resource is created in a separate module, and cross-module dependencies are not tracked.
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2. 7foundation · easy

   A Terraform configuration creates an AWS IAM role and an IAM policy. The policy must be attached to the role, but the attachment resource does not reference any attribute of the role or policy. What should be added to the attachment resource to ensure the role and policy are created first?

   • Acount = 1
   • Bdepends_on = [aws_iam_role.role, aws_iam_policy.policy]
   • Clifecycle { create_before_destroy = true }
   • Dprovisioner "local-exec" { command = "..." }
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4. 8application · medium

   A developer writes Terraform configuration for a VPC and a subnet. The subnet block uses the VPC's ID: subnet_id = aws_vpc.main.id. The developer is surprised that the subnet is created after the VPC even though no depends_on is present. Why does Terraform know to create the subnet after the VPC?

   • ATerraform creates resources in the order they appear in the configuration file.
   • BThe subnet resource type inherently requires a VPC, so Terraform hardcodes that dependency.
   • CThe reference aws_vpc.main.id creates an implicit dependency that Terraform uses to order the resources.
   • DTerraform automatically adds depends_on for all resources in the same configuration file.
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5. 9application · medium

   A team is provisioning a web server and a database. The web server's user data script needs the database's endpoint, but the endpoint is only known after the database is created. The team writes the configuration so the web server references the database's endpoint attribute directly. What is the result?

   • ATerraform creates the web server first, then the database, because the web server is defined first in the configuration.
   • BTerraform creates the database first, then the web server, because the reference creates an implicit dependency.
   • CTerraform creates both resources in parallel because the reference is only in a script, not in a resource argument.
   • DTerraform fails with an error because the database endpoint is not known until after creation.
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6. 10foundation · easy

   A Terraform configuration creates an Azure resource group and a storage account. The storage account must be created after the resource group, but the configuration does not reference any attribute of the resource group. What should be added to the storage account resource block to enforce this ordering?

   • Acount = 1
   • Blifecycle { create_before_destroy = true }
   • Cprovisioner "local-exec" { command = "..." }
   • Ddepends_on = [azurerm_resource_group.rg]
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