Instant Access HashiCorp.TA-002-P.v2022-06-30.q116 Actual Practice Test Engine for Free (Page 19)

Question 86

Given the Terraform configuration below, in which order will the resources be created?
1. resource "aws_instance" "web_server"
2. {
3. ami = "ami-b374d5a5"
4. instance_type = "t2.micro"
5. }
6. resource "aws_eip" "web_server_ip"
7. {
8. vpc = true instance = aws_instance.web_server.id
9. }

A.aws_eip will be created first
aws_instance will be created second
B.aws_eip will be created first
aws_instance will be created second
C.Resources will be created simultaneously
D.aws_instance will be created first
aws_eip will be created second

Correct Answer: D

Implicit and Explicit Dependencies
By studying the resource attributes used in interpolation expressions, Terraform can automatically infer when one resource depends on another. In the example above, the reference to aws_instance.web_server.id creates an implicit dependency on the aws_instance named web_server.
Terraform uses this dependency information to determine the correct order in which to create the different resources.
# Example of Implicit Dependency
resource "aws_instance" "web_server" {
ami = "ami-b374d5a5"
instance_type = "t2.micro"
}
resource "aws_eip" "web_server_ip" {
vpc = true
instance = aws_instance.web_server.id
}
In the example above, Terraform knows that the aws_instance must be created before the aws_eip.
Implicit dependencies via interpolation expressions are the primary way to inform Terraform about these relationships, and should be used whenever possible.
Sometimes there are dependencies between resources that are not visible to Terraform. The depends_on argument is accepted by any resource and accepts a list of resources to create explicit dependencies for.
For example, perhaps an application we will run on our EC2 instance expects to use a specific Amazon S3 bucket, but that dependency is configured inside the application code and thus not visible to Terraform. In that case, we can use depends_on to explicitly declare the dependency:
# Example of Explicit Dependency
# New resource for the S3 bucket our application will use.
resource "aws_s3_bucket" "example" {
bucket = "terraform-getting-started-guide"
acl = "private"
}
# Change the aws_instance we declared earlier to now include "depends_on" resource "aws_instance" "example" { ami = "ami-2757f631" instance_type = "t2.micro"
# Tells Terraform that this EC2 instance must be created only after the
# S3 bucket has been created.
depends_on = [aws_s3_bucket.example]
}
https://learn.hashicorp.com/terraform/getting-started/dependencies.html

Question 87

Terraform provisioners that require authentication can use the ______ block.

A.connection
B.credentials
C.ssh
D.secrets

Question 88

Which of the following value will be accepted for my_var?
1. variable "my_var"
2. {
3. type = string
4. }

A.15
B."15"
C.Both A and B
D.None of the above

Question 89

Only the user that generated a plan may apply it.

A.True
B.False

Question 90

What command should you run to display all workspaces for the current configuration?

A.terraform workspace
B.terraform workspace show
C.terraform workspace list
D.terraform show workspace

Question 86

Question 87

Question 88

Question 89

Question 90

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