Understand Terraform basics →mediumMultiple ChoiceObjective-mapped

TF-004 Understand Terraform basics Practice Question

Exhibit

resource "aws_instance" "web" {
  ami           = "ami-0c55b159cbfafe1f0"
  instance_type = "t2.micro"

  tags = {
    Name = "WebServer"
  }
}

resource "aws_eip" "web" {
  instance = aws_instance.web.id
}

Refer to the exhibit. A user applies this configuration and then runs 'terraform state list'. Which resource addresses would appear in the output?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

aws_instance.web and aws_eip.web

The configuration defines two resources: aws_instance.web and aws_eip.web. Both will be in the state after apply. Option A lists both correct addresses.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
aws_instance.web and aws_eip.web
Why this is correct
Upon a successful `terraform apply`, all resources defined in the configuration and successfully provisioned by Terraform are recorded in the Terraform state file. Since both `aws_instance.web` and `aws_eip.web` are distinct resources specified in the configuration and are successfully created, both will have corresponding entries in the state file, reflecting their current attributes and IDs in the cloud provider.
✗
aws_instance.web only
Why it's wrong here
This option is incorrect because if the Terraform configuration defines both an `aws_instance.web` and an `aws_eip.web` resource, a successful `terraform apply` will provision both. The `aws_eip.web` resource, being a distinct entity, would also be created in AWS and subsequently recorded in the Terraform state file alongside the `aws_instance.web` resource, not excluded from it.
✗
aws_instance.web and aws_eip.web (but aws_eip.web might not appear if the EIP fails to associate)
Why it's wrong here
This option is incorrect because it introduces a conditional failure scenario that contradicts the premise of a successful `terraform apply` where resources are created and recorded in state. Assuming the `apply` operation completed successfully, both the `aws_instance.web` and `aws_eip.web` resources would have been provisioned and their details accurately reflected in the Terraform state file, regardless of any potential association issues that would typically cause the `apply` to fail or result in a different state.
✗
aws_eip.web only
Why it's wrong here
This option is incorrect because if the Terraform configuration includes definitions for both `aws_instance.web` and `aws_eip.web`, a successful `terraform apply` operation will provision both resources. The `aws_instance.web` resource, representing the EC2 instance itself, is a fundamental component and would certainly be created and recorded in the state file, making it impossible for only the `aws_eip.web` to appear.

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TF-004 Understand Terraform basics Practice Question

Exhibit

Why each option matters

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