What is the purpose of the Yeoman Doctor and how is it invoked?

• A. To diagnose environment issues; run yo doctor from the CLI
• B. To generate scaffolding for a project
• C. To verify prompts during tests
• D. To manage Yeoman namespaces

Answer: (C)

Yeoman Doctor is a diagnostic tool that checks your development environment for issues that could affect running Yeoman generators. It looks at things like Node and npm versions, Git configuration, permissions, network access, and other dependencies, then reports any problems and suggests fixes. You invoke it from the command line by running the Yeoman CLI command: yo doctor. It will run a series of checks and tell you whether your environment is healthy or what to change. It isn’t about generating scaffolding, testing prompts, or managing namespaces—the purpose is to verify that your environment is ready for Yeoman to operate smoothly.