DevOps Infrastructure as Code

Question 1

What is Infrastructure as Code (IaC)?

Accepted Answer

Managing and provisioning infrastructure through machine-readable configuration files

Answer

IaC manages infrastructure (networks, VMs, load balancers) through declarative or imperative configuration files that can be version-controlled and automated.

Question 2

Which IaC tool uses a declarative language called HCL (HashiCorp Configuration Language)?

Accepted Answer

Terraform

Answer

Terraform uses HCL to describe the desired state of infrastructure; it then creates, updates, or destroys resources to match that declared state.

Question 3

What does `terraform init` do?

Accepted Answer

Initializes a Terraform working directory and downloads provider plugins

Answer

`terraform init` initializes the working directory by downloading the required provider plugins and setting up the backend for state storage.

Question 4

What is Terraform 'state'?

Accepted Answer

A file that tracks the current real-world resources managed by Terraform

Answer

Terraform state (terraform.tfstate) maps the configuration to real infrastructure resources so Terraform can calculate changes and detect drift.

Question 5

What is the purpose of `terraform plan`?

Accepted Answer

Shows what changes Terraform will make without actually applying them

Answer

`terraform plan` creates an execution plan showing which resources will be created, modified, or destroyed based on current state vs. desired configuration.

DevOps Practice Test

DevOps Practice Test

DevOps Infrastructure as Code