4f Define Resource Dependencies in Configuration TERRAFORM-ASSOCIATE-004 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   In Terraform, how does an implicit resource dependency typically arise?

   • AWhen resources are defined in the same configuration file
   • BWhen resources are in the same module
   • CWhen resources have the same provider
   • DWhen one resource references an attribute of another resource in its configuration
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2. 2application · medium

   A configuration contains three resources: A, B, and C. Resource A references an attribute of B. Resource C has depends_on = [A]. Which statement correctly describes the order in which Terraform will create these resources?

   • AB is created first, then A, then C.
   • BC is created first, then A, then B.
   • CAll three resources are created in parallel because there is no direct reference between B and C.
   • DA is created first, then B, then C.
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4. 3expert · hard

   A configuration has resources A, B, C, and D. A references B. C has depends_on = [A]. D has depends_on = [B]. During terraform destroy, which resources will be destroyed first?

   • AAll four resources are destroyed in parallel because destroy operations do not respect dependencies.
   • BC and D are destroyed first, in parallel, because they have no dependency on each other.
   • CA is destroyed first, then B, then C and D in parallel.
   • DB is destroyed first, then A, then C and D in parallel.
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5. 4foundation · easy

   What does Terraform use to determine the order in which resources are created, updated, and destroyed?

   • AThe alphabetical order of resource names
   • BThe order resources are defined in the configuration file
   • CThe order resources are listed in the state file
   • DA dependency graph built from resource references and depends_on declarations
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6. 5expert · hard

   A team has a configuration with three resources: a security group (aws_security_group "sg"), an instance (aws_instance "web"), and a load balancer (aws_lb "lb"). The instance references the security group ID. The load balancer has depends_on = [aws_instance.web]. During a terraform apply, the team notices that the security group is created, then the instance, then the load balancer. However, the load balancer also needs the security group to exist. Why does Terraform not create the load balancer in parallel with the instance?

   • AThe load balancer has an explicit depends_on on the instance, so it must wait for the instance to be created.
   • BThe load balancer implicitly depends on the security group through the instance's reference.
   • CThe load balancer references the instance's ID, creating an implicit dependency.
   • DTerraform always serializes resources that are in the same module.
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