4b Refer to Resource Attributes and Create Cross-Resource References TERRAFORM-ASSOCIATE-004 Practice Questions (Page 2)

Questions 6–9

1. 6foundation · medium

   In a Terraform configuration, you have defined an AWS instance resource named "web" in the "aws_instance" resource type. You need to pass the instance's public IP address to a null_resource provisioner's connection block. Which expression correctly references that attribute?

   • Aweb.aws_instance.public_ip
   • Baws_instance.web.public_ip
   • Caws_instance.web.id.public_ip
   • Daws_instance.public_ip.web
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2. 7application · medium

   A team is refactoring their Terraform configuration. They notice that a resource A references an attribute of resource B, but they want to ensure resource B is created before resource A even if the reference is removed later. What should they do?

   • AMove resource B to a separate configuration file.
   • BUse a variable to pass the value from resource B to resource A.
   • CRemove the reference and rely on Terraform's parallel execution.
   • DAdd an explicit depends_on argument to resource A referencing resource B.
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4. 8expert · hard

   A company has a Terraform configuration that creates an AWS VPC, a subnet, and an EC2 instance. The instance references the subnet ID. During a terraform plan, the team notices that Terraform wants to destroy and recreate the subnet. What is the most likely reason for this behavior?

   • AThe subnet's configuration has changed in a way that requires replacement, such as a change to the CIDR block.
   • BThe instance references the subnet ID, which creates a dependency that forces the subnet to be recreated.
   • CThe subnet is being recreated because the instance is being recreated.
   • DTerraform always recreates resources when there is a cross-resource reference.
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5. 9expert · hard

   An organization is using Terraform to deploy a multi-tier application on AWS. They have an ALB (Application Load Balancer), a target group, and an autoscaling group. The autoscaling group must register instances with the target group. The target group references the ALB's ARN. The autoscaling group references the target group's ARN. What is the correct dependency chain?

   • AALB → Autoscaling Group → Target Group, because the autoscaling group is larger.
   • BAutoscaling Group → Target Group → ALB, because the autoscaling group is created first.
   • CAll resources are created in parallel because there are no explicit depends_on arguments.
   • DALB → Target Group → Autoscaling Group, because each references the previous resource's attribute.
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