Hashicorp Terraform Associate Certification
Questions And Correct Answers
What is Infrastructure as Code?
You write and execute the code to define, deploy, update, and destroy your
infrastructure
What are the benefits of IaC?
a. Automation -We can bring up the servers with one script and scale up and down
based on our load with the same script.
b. Reusability of the code - We can reuse the same code
c. Versioning - We can check it into version control and we get versioning. Now we can
see an incremental history of who changed what, how is our infrastructure actually
defined at any given point of time, and we have this transparency of documentation
IaC makes changes idempotent, consistent, repeatable, and predictable.
How using IaC make it easy to provision infrastructure?
IaC makes it easy to provision and apply infrastructure configurations, saving time. It
standardizes workflows across different infrastructure providers (e.g., VMware, AWS,
Azure, GCP, etc.) by using a common syntax across all of them.
What is Ideompodent in terms of IaC?
The idempotent characteristic provided by IaC tools ensures that, even if the same code
is applied multiple times, the result remains the same.
What are Day 0 and Day 1 activities?
IaC can be applied throughout the lifecycle, both on the initial build, as well as
throughout the life of the infrastructure. Commonly, these are referred to as Day 0 and
Day 1 activities.
"Day 0" code provisions and configures your initial infrastructure.
"Day 1" refers to OS and application configurations you apply after you've initially built
your infrastructure.
What are the advantages of Terraform?
Platform Agnostic
State Management
Operator Confidence
Where do you describe all the components or your entire datacenter so that
Terraform provision those?
Configuration files ends with *.tf
How can Terraform build infrastructure so efficiently?
Terraform builds a graph of all your resources, and parallelizes the creation and
modification of any non-dependent resources. Because of this, Terraform builds
infrastructure as efficiently as possible, and operators get insight into dependencies in
their infrastructure.
What is multi-cloud deployment?
Provisioning your infrastructure into multiple cloud providers to increase fault-tolerance
of your applications.
How multi-cloud deployment is useful?
, By using only a single region or cloud provider, fault tolerance is limited by the
availability of that provider.
Having a multi-cloud deployment allows for more graceful recovery of the loss of a
region or entire provider.
What is cloud-agnostic in terms of provisioning tools?
cloud-agnostic and allows a single configuration to be used to manage multiple
providers, and to even handle cross-cloud dependencies.
What is the use of terraform being cloud-agnostic?
It simplifies management and orchestration, helping operators build large-scale multi-
cloud infrastructures.
What is the Terraform State?
Every time you run Terraform, it records information about what infrastructure it created
in a Terraform state file.
By default, when you run Terraform in the folder /some/folder, Terraform creates the
file /some/folder/terraform.tfstate.
This file contains a custom JSON format that records a mapping from the Terraform
resources in your configuration files to the representation of those resources in the real
world.
What is the purpose of the Terraform State?
Mapping to the Real World - Terraform requires some sort of database to map
Terraform config to the real world because you can't find the same functionality in every
cloud provider. You need to have some kind of mechanism to be cloud-agnostic
Metadata - Terraform must also track metadata such as resource dependencies, pointer
to the provider configuration that was most recently used with the resource in situations
where multiple aliased providers are present.
Performance - When running a terraform plan, Terraform must know the current state of
resources in order to effectively determine the changes that it needs to make to reach
your desired configuration.
For larger infrastructures, querying every resource is too slow. Many cloud providers do
not provide APIs to query multiple resources at once, and the round trip time for each
resource is hundreds of milliseconds. So, Terraform stores a cache of the attribute
values for all resources in the state. This is the most optional feature of Terraform state
and is done only as a performance improvement.
Syncing - When two people works on the same file and doing some changes to the
infrastructure. Its very important for everyone to be working with the same state so that
operations will be applied to the same remote objects.
What is the name of the terraform state file?
terraform.tfstate
How do you install terraform on different OS?
Questions And Correct Answers
What is Infrastructure as Code?
You write and execute the code to define, deploy, update, and destroy your
infrastructure
What are the benefits of IaC?
a. Automation -We can bring up the servers with one script and scale up and down
based on our load with the same script.
b. Reusability of the code - We can reuse the same code
c. Versioning - We can check it into version control and we get versioning. Now we can
see an incremental history of who changed what, how is our infrastructure actually
defined at any given point of time, and we have this transparency of documentation
IaC makes changes idempotent, consistent, repeatable, and predictable.
How using IaC make it easy to provision infrastructure?
IaC makes it easy to provision and apply infrastructure configurations, saving time. It
standardizes workflows across different infrastructure providers (e.g., VMware, AWS,
Azure, GCP, etc.) by using a common syntax across all of them.
What is Ideompodent in terms of IaC?
The idempotent characteristic provided by IaC tools ensures that, even if the same code
is applied multiple times, the result remains the same.
What are Day 0 and Day 1 activities?
IaC can be applied throughout the lifecycle, both on the initial build, as well as
throughout the life of the infrastructure. Commonly, these are referred to as Day 0 and
Day 1 activities.
"Day 0" code provisions and configures your initial infrastructure.
"Day 1" refers to OS and application configurations you apply after you've initially built
your infrastructure.
What are the advantages of Terraform?
Platform Agnostic
State Management
Operator Confidence
Where do you describe all the components or your entire datacenter so that
Terraform provision those?
Configuration files ends with *.tf
How can Terraform build infrastructure so efficiently?
Terraform builds a graph of all your resources, and parallelizes the creation and
modification of any non-dependent resources. Because of this, Terraform builds
infrastructure as efficiently as possible, and operators get insight into dependencies in
their infrastructure.
What is multi-cloud deployment?
Provisioning your infrastructure into multiple cloud providers to increase fault-tolerance
of your applications.
How multi-cloud deployment is useful?
, By using only a single region or cloud provider, fault tolerance is limited by the
availability of that provider.
Having a multi-cloud deployment allows for more graceful recovery of the loss of a
region or entire provider.
What is cloud-agnostic in terms of provisioning tools?
cloud-agnostic and allows a single configuration to be used to manage multiple
providers, and to even handle cross-cloud dependencies.
What is the use of terraform being cloud-agnostic?
It simplifies management and orchestration, helping operators build large-scale multi-
cloud infrastructures.
What is the Terraform State?
Every time you run Terraform, it records information about what infrastructure it created
in a Terraform state file.
By default, when you run Terraform in the folder /some/folder, Terraform creates the
file /some/folder/terraform.tfstate.
This file contains a custom JSON format that records a mapping from the Terraform
resources in your configuration files to the representation of those resources in the real
world.
What is the purpose of the Terraform State?
Mapping to the Real World - Terraform requires some sort of database to map
Terraform config to the real world because you can't find the same functionality in every
cloud provider. You need to have some kind of mechanism to be cloud-agnostic
Metadata - Terraform must also track metadata such as resource dependencies, pointer
to the provider configuration that was most recently used with the resource in situations
where multiple aliased providers are present.
Performance - When running a terraform plan, Terraform must know the current state of
resources in order to effectively determine the changes that it needs to make to reach
your desired configuration.
For larger infrastructures, querying every resource is too slow. Many cloud providers do
not provide APIs to query multiple resources at once, and the round trip time for each
resource is hundreds of milliseconds. So, Terraform stores a cache of the attribute
values for all resources in the state. This is the most optional feature of Terraform state
and is done only as a performance improvement.
Syncing - When two people works on the same file and doing some changes to the
infrastructure. Its very important for everyone to be working with the same state so that
operations will be applied to the same remote objects.
What is the name of the terraform state file?
terraform.tfstate
How do you install terraform on different OS?
