Q1. What is Terraform state and why should it be remote?
Terraform state is a JSON file that maps your configuration to real infrastructure. It stores resource IDs, attribute values, and dependency metadata so Terraform knows w...
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Q2. Explain providers and the terraform init workflow.
A provider is a plugin that lets Terraform talk to an API, such as AWS, Azure, or Kubernetes. - Declare required providers and versions so builds are reproducible. - terr...
Q3. What are Terraform modules and when would you use them?
A module is a reusable package of Terraform configuration. Every configuration is a root module, and it can call child modules. Benefits: - Encapsulation: expose a small ...
Q4. What is Infrastructure as Code and why does it matter?
IaC defines infrastructure (networks, servers, databases, DNS, IAM) in version-controlled declarative files, applied by a tool such as Terraform, Pulumi, CloudFormation o...
Q5. What is the difference between terraform plan and apply?
plan is a dry run; apply makes changes. - terraform plan refreshes state, compares configuration to reality, and shows what will be created, updated, or destroyed. It doe...
Q6. How do Terraform workspaces work and when should you use them?
Workspaces let one configuration manage multiple, separate states. terraform.workspace is a variable naming the active workspace, and the default workspace always exists....
Q7. How do you manage infrastructure drift in Terraform?
Drift is a difference between real infrastructure and Terraform state, usually caused by manual changes. Detect: - terraform plan refreshes state and shows differences. -...
Q8. Explain Terraform lifecycle meta-arguments.
The lifecycle block controls how Terraform creates, updates, and destroys a resource. - create_before_destroy: create the replacement before destroying the old one, reduc...
Q9. What is the difference between count and for_each?
Both create multiple instances of a resource, but they track them differently. - count takes a number and identifies instances by index, such as resource[0] and resource[...