Next.js Interview Questions & Assessment
Evaluate Next.js expertise including App Router, Server Components, data fetching, API routes, and deployment strategies.
Why Next.js Matters
Next.js is the leading React framework for production applications. Companies like Vercel, Hulu, TikTok, and Twitch use it for its server-side rendering and developer experience.
Sample Interview Questions
Explain the difference between Server Components and Client Components in Next.js App Router.
Compare getStaticProps, getServerSideProps, and the new data fetching patterns in App Router.
How does Next.js handle image optimization? What are the key props of the Image component?
Explain ISR (Incremental Static Regeneration). When would you use it over SSR?
How would you implement authentication in a Next.js App Router application?
How to Prepare
Understand the App Router vs Pages Router and migration path
Master Server Components and know what can and can't run on the server
Practice with different rendering strategies: SSG, SSR, ISR, streaming
Know the caching layers: Data Cache, Full Route Cache, Router Cache
Practice deploying to Vercel and other platforms
Related Skills
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