At this level, individuals have a basic understanding of Infrastructure as Code (IaC) and the purpose and benefits of Terraform. They are familiar with the concept of declarative programming and aware of cloud service providers like AWS, GCP, Azure.

Novices can install and configure Terraform and understand basic commands such as init, plan, apply, and destroy. They know how to write simple Terraform configurations and understand resource blocks and basic state management in Terraform.

Intermediate users can manage remote state with backends and understand input and output variables in Terraform. They can use provisioners and modules, understand Terraform's dependency graph, manage multiple environments with workspaces, and understand lifecycle directives.

Advanced users can write complex Terraform configurations and understand advanced concepts like data sources, count, for_each. They can use Terraform in a team environment, secure Terraform operations, integrate it with CI/CD pipelines, and test Terraform code.

Experts have a deep understanding of Terraform internals and can troubleshoot complex issues. They have experience with large-scale deployments, can optimize Terraform operations for performance, know best practices for using Terraform at scale, contribute to the open source project, and have experience with advanced automation.