1. What is a key difference between Next.js and Create React App?
Next.js is a framework built on top of React that provides server-side rendering, static site generation, file-based routing, API routes, and built-in optimizations, while Create React App is just a build tool that creates a client-side React application without these features. Next.js applications are production-ready with better SEO, faster initial page loads through pre-rendering, and full-stack capabilities, whereas CRA requires additional libraries and configuration for routing and data fetching.