Terraform

Explain the difference between provisioners and null_resource in Terraform.

What is a remote backend in Terraform?

Can Terraform be used for on-prem infrastructure?

Describe a challenging problem you faced while working with Terraform and how you solved it.

Differentiate between Terraform and Cloudformation.

Discuss the advantages and disadvantages of using HCL (HashiCorp Configuration Language) for defining infrastructure as code.

Discuss the "destroy-before-create" approach in Terraform and when it is useful.

Discuss the differences between count and for_each in Terraform when working with resource blocks.

Explain how you can automate the deployment of Terraform configurations using CI/CD pipelines.

Explain how you can implement a custom provider in Terraform.

Explain how you can manage the lifecycle of a Terraform resource with the lifecycle block.

Explain the concept of remote-exec and local-exec provisioners in Terraform.

Explain the concept of Terraform destroy and discuss best practices for handling resource destruction.

Explain the concept of "Terraform plan output" and how it can be saved and shared with the team.

Explain the concept of Terraform Workspaces.

Explain the remote state feature in Terraform.

Explain what a Terraform provider and a Terraform provisioner are, and how they differ in their use cases.

Give the terraform configuration for creating a single EC2 instance on AWS.

How do you ensure idempotence in Terraform configurations, and why is it important?

How do you handle infrastructure updates or changes without causing downtime?

How do you handle resource drift or changes that were made outside of Terraform?

How do you manage dependencies between resources in Terraform?

How do you manage different environments (e.g., dev, staging, production) using Terraform?

How do you version control your Terraform configurations?

How does Terraform ensure the idempotency of resource provisioning?

How does Terraform manage resource dependencies, and what is the role of the Terraform graph in this process?

Provide a few examples where Sentinel policies can be used?

What are data sources in Terraform, and how are they used?

What are Sentinel policies?

What are Terraform Modules?

What are the different levels of Sentinel enforcement?

What is a tainted resource?

What is a Terraform State file?

What is Terraform Cloud?

What is Terraform Core?

What is Terraform state locking, and why is it important in a multi-user environment?

What is Terragrunt?

What is the best practice for handling Terraform state locking and concurrency in a team environment?

What is the Resource Graph in Terraform?

What is the Terraform refresh command?

What is the Terraform Registry?