Node.js Basics Quiz Every Beginner Must Crack Before Interviews

Build strong Node.js fundamentals with this beginner-friendly multiple-choice quiz covering runtime basics, npm, modules, asynchronous behavior, environment variables, filesystem operations, and HTTP server essentials. Perfect for students, freshers, and developers preparing for backend interviews and practical JavaScript server development. Topics Covered: 1. What is Node.js primarily used for? 2. Which built-in Node.js module is commonly used to create an HTTP server? 3. What command initializes a new Node.js project with a `package.json` file? 4. What does `npm install express` do? 5. Why is Node.js considered non-blocking by default? 6. What is the purpose of `module.exports` in CommonJS? 7. Which global object in Node.js gives access to environment variables? 8. What is the role of `nodemon` during development? 9. What does the `fs` module help you do in Node.js? 10. How do you start a Node.js file named `app.js` from the terminal?