Module 4 · Recall check

1. You apply a Terraform config that creates a GKE cluster. A colleague then deletes that cluster manually from the cloud console. You run `terraform plan` the next day. What does it say?

2. Where should the `terraform.tfstate` file live in a production setup?

3. Your config has `resource "aws_instance" "web" { instance_type = "t3.small" ... }`. You change `instance_type` to `t3.medium` and run `apply`. What does Terraform do?

4. Why does Terraform require you to declare `required_providers` with a version constraint?

5. A teammate runs `terraform apply` while you're mid-way through your own `apply`. What actually happens without a locking backend?