Question 1

How would you reference the volume IDs associated with the ebs_block_device blocks in this configuration?

Accepted Answer

This is the correct way to reference the volume IDs associated with the ebs_block_device blocks in this configuration, using the splat expression syntax. The other
options are either invalid or incomplete.

Question 2

You've used Terraform to deploy a virtual machine and a database. You want to replace this virtual machine instance with an identical one without affecting the
database. What is the best way to achieve this using Terraform?

Accepted Answer

The terraform taint command marks a resource as tainted, which means it will be destroyed and recreated on the next apply. This way, you can replace the VM
instance without affecting the database or other resources. References = [Terraform Taint]

Question 3

How does Terraform determine dependencies between resources?

Accepted Answer

This is how Terraform determines dependencies between resources, by using the references between them in the configuration files and other factors that affect
the order of operations.

Question 4

What does this code do?

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Accepted Answer

This is what this code does, by using the pessimistic constraint operator (~>), which specifies an acceptable range of versions for a provider or module.

Question 5

While attempting to deploy resources into your cloud provider using Terraform, you begin to see some odd behavior and experience slow responses. In order to
troubleshoot you decide to turn on Terraform debugging. Which environment variables must be configured to make Terraform's logging more verbose?

Accepted Answer

To make Terraform's logging more verbose for troubleshooting purposes, you must configure the TF_LOG environment variable. This variable controls the level of
logging and can be set to TRACE, DEBUG, INFO, WARN, or ERROR, with TRACE providing the most verbose output.References = Detailed debugging
instructions and the use of environment variables like TF_LOG for increasing verbosity are part of Terraform's standard debugging practices

Question 6

terraform validate confirms that your infrastructure matches the Terraform state file.

Accepted Answer

terraform validate does not confirm that your infrastructure matches the Terraform state file. It only checks whether the configuration files in a directory are
syntactically valid and internally consistent3. To confirm that your infrastructure matches the Terraform state file, you need to use terraform plan or terraform apply
with the -refresh- only option.

Question 7

You cannot install third party plugins using terraform init.

Accepted Answer

You can install third party plugins using terraform init, as long as you specify the plugin directory in your configuration or as a command-line argument. You can
also use the terraform providers mirror command to create a local mirror of providers from any source.

Question 8

If a module declares a variable with a default, that variable must also be defined within the module.

Accepted Answer

A module can declare a variable with a default value without requiring the caller to define it. This allows the module to provide a sensible default behavior that can
be customized by the caller if needed. References = [Module Variables]

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Question 9

You should run terraform fnt to rewrite all Terraform configurations within the current working directory to conform to Terraform-style conventions.

Accepted Answer

You should run terraform fmt to rewrite all Terraform configurations within the current working directory to conform to Terraform-style conventions. This command
applies a subset of the Terraform language style conventions, along with other minor adjustments for readability. It is recommended to use this command to
ensure consistency of style across different Terraform codebases. The command is optional, opinionated, and has no customization options, but it can help you
and your team understand the code more quickly and easily. References = : Command: fmt : Using Terraform fmt Command to Format Your Terraform Code

Question 10

As a developer, you want to ensure your plugins are up to date with the latest versions. Which Terraform command should you use?

Accepted Answer

This command will upgrade the plugins to the latest acceptable version within the version constraints specified in the configuration. The other commands do not
have an - upgrade option.