terraform interview questions Practice Exam: Test Your Knowledge 2025

What is the primary benefit of Infrastructure as Code (IaC) compared to manual infrastructure provisioning?

A development team is managing infrastructure configurations manually through cloud provider consoles. Which Infrastructure as Code principle would most improve their workflow?

Which characteristic distinguishes declarative Infrastructure as Code from imperative approaches?

Which statement best describes Terraform's multi-cloud capability?

A company wants to manage their on-premises VMware infrastructure, AWS cloud resources, and GitHub repositories using a single tool. How does Terraform address this requirement?

Which Terraform block is required in every Terraform configuration?

What is the purpose of the Terraform provider block in a configuration?

In Terraform, what is the correct way to reference an attribute of a resource named 'web_server' of type 'aws_instance'?

A Terraform configuration includes the following code: variable "instance_count" { type = number } resource "aws_instance" "server" { count = var.instance_count ami = "ami-12345678" instance_type = "t2.micro" } How would you reference the ID of the first instance created?

What is the purpose of running 'terraform init' in a Terraform working directory?

A team member runs 'terraform plan' and sees that Terraform will destroy and recreate a critical database resource. What does the '-/+' symbol in the plan output indicate?

Which command should you use to safely test Terraform configuration changes before applying them to production infrastructure?

What is the primary purpose of using Terraform modules?

When calling a module in Terraform, which argument is required in the module block?

A team is using a module from the Terraform Registry. After making changes to input variables for the module, what command must be run?

What is the correct order of the standard Terraform workflow commands?

A developer wants to destroy a specific resource managed by Terraform without affecting other resources. Which command should they use?

During a 'terraform apply' operation, the process is interrupted due to a network failure. What is the expected state of the infrastructure and state file?

What is the purpose of the Terraform state file?

A team of five engineers needs to collaborate on Terraform infrastructure. What is the recommended approach for managing Terraform state?