TOP 300 Next.js Multiple Choice Questions (MCQs) Quiz

Next.js MCQs and Answers

1. What is Next.js?
A. A JavaScript library for server-side rendering React applications
B. A framework for static site generation using React
C. A Node.js framework for building fullstack web applications
D. A React framework that makes server-side rendering and generating static websites easy

Answer: D

2. Which of the following is NOT a benefit of using Next.js?
A. Improved SEO through server side rendering
B. Easy page transitions without full page reloads
C. Ability to write code in TypeScript
D. Built-in support for CSS modules

Answer: B

3. What is the default mode that Next.js apps are generated in?
A. Client-side rendering
B. Server-side rendering
C. Static site generation
D. None of the above

Answer: B

4. Which Next.js method can be used to fetch data for pre-rendering?
A. getServerData()
B. getInitialProps()
C. getStaticProps()
D. getStaticPaths()

Answer: B

5. Where do you put global CSS files that you want to be applied across all components in a Next.js app?
A. _app.js
B. _document.js
C. index.js
D. styles.js

Answer: B

6. What is the name of the built-in Next.js router?
A. Router
B. NextRouter
C. PageRouter
D. AppRouter

Answer: B

7. How do you navigate between pages in Next.js?
A. Using the NextRouter
B. Using component
C. Assigning window.location
D. All of the above

Answer: D

8. Which React lifecycle method can be used to fetch data with Next.js?
A. componentWillMount()
B. componentDidMount()
C. UNSAFE_componentWillMount()
D. None of the above

Answer: D

9. What folder do you put non-React code like custom server code into?
A. utils
B. lib
C. api
D. server

Answer: D

10. Why might you generate a hybrid Next.js app?
A. Improved runtime performance
B. Indexing by search engines
C. Host on a serverless platform
D. All of the above

Answer: D

Next.js MCQs

11. Which API route method in Next.js is asynchronous?
A. GET
B. POST
C. PUT
D. None of the above

Answer: D

12. What is the default bundler used by Next.js?
A. webpack
B. Parcel
C. Vite
D. None of the above

Answer: A

13. How do you share data between pages in Next.js?
A. React Context API
B. Next.js Shared Data
C. Local Storage
D. Cookies

Answer: B

14. Which file is responsible for routing in a Next.js app?
A. _app.js
B. index.js
C. _document.js
D. server.js

Answer: B

15. What is the folder called where Next.js automatically optimizes images?
A. imgs
B. images
C. static
D. public

Answer: D

16. Which React feature allows for fast refresh without losing component state in Next.js?
A. Hot reloading
B. Fast Refresh
C. Warm reloading
D. Live Reloading

Answer: B

17. What is Incremental Static Regeneration in Next.js?
A. Partially generating static pages at build time
B. Updating static pages after deployment
C. Generating additional static pages on demand
D. All of the above

Answer: D

18. Which file allows adding customtags in Next.js?
A. head.js
B. _app.js
C. _document.js
D. index.js

Answer: C

19. What is the name of the built-in prefetching capabilities in Next.js?
A. Data Caching
B. Scroll Prefetching
C. Page Prefetching
D. Link Prefetching

Answer: D

20. How do you reuse page layouts in Next.js?
A. By creating layout components
B. Using the _layout.js file
C. Using the Layout Import
D. By wrapping pages in the tag

Answer: A

21. Which React API allows creating client-side only routes?
A. React Router
B. next/link
C. next/router
D. next-routes

Answer: A

22. Where do error pages go in Next.js by default?
A. _errors directory
B. pages/errors directory
C. Errors get shown inline
D. No default error page exists

Answer: B

23. What is the name of the built-in ES6 styled components support in Next.js?
A. Next Styled JSX
B. Styled Components
C. Built-in Styling
D. NextCSS

Answer: B

24. How do you create an API endpoint with Next.js?
A. Create folder named api
B. Use serverless functions
C. Add api route in index.js
D. Install next-routes

Answer: B

25. Which folder do static files like robots.txt go into?
A. static
B. public
C. assets
D. utils

Answer: B

26. What syntax adds Image Optimization in Next.js?
A. <OptimizedImage>
B. <NextImage>
C. <Image>
D. No special syntax required

Answer: D

27. By default, which file optimizes Font Loading in Next.js?
A. tailwind.config.js
B. globals.css
C. _app.js
D. _document.js

Answer: D

28. Which API route method handles form POST requests in Next.js?
A. post
B. api
C. form
D. Next.js has no built-in form handling

Answer: D

29. What is the file name convention for API routes?
A. /page.js
B. /api/page.js
C. [page].js
D. pages.api.js

Answer: B

30. Which build output setting creates static HTML pages?
A. server
B. static
C. hybrid
D. spa

Answer: C

31. What is required to deploy a Next.js app to Vercel?
A. vercel.json
B. package.json
C. Nothing, it’s automatic
D. next-config.js

Answer: C

32. Why might you choose SSR over SSG?
A. Frequent content updates
B. Need real-time data
C. Slow build times
D. All of the above

Answer: D

33. What is the name of Next.js’s built-in analytics tool?
A. Next Stats
B. Next Analyze
C. Next Metrics
D. No built-in analytics exist

Answer: D

34. Which optimization splits server bundles to speed up build times?

A. Incremental Builds
B. Parallel Builds
C. Lazy Building
D. Code Splitting

Answer: B

35. Where do environment variables go in Next.js by default?
A. .env
B. next.config.js
C. process.env
D. Environment variables have no special handling

Answer: A

36. What is the middleware config file in a Next.js app called?
A. server.js
B. next.config.js
C. config.js
D. middleware.js

Answer: B

37. Which React feature helps prevent XSS attacks in Next.js?
A. Secured Frames
B. Automatic Sanitization
C. JSX Sanitization
D. Automatic Escaping

Answer: D

38. What is the name of Next.js’s Zero Config TypeScript Support?
A. Next Typescript
B. TypeSafe
C. TSX
D. Next.js has no built-in TypeScript Support

Answer: C

39. How do you create loading states in Next.js?
A. Use React Suspense
B. Fetch data asynchronously
C. Show spinners while fetching data
D. All of the above

Answer: D

40. Which deployment requires handling servers yourself?
A. Vercel
B. Netlify
C. AWS Amplify
D. Traditional Hosting

Answer: D

41. Why might you choose Static Site Generation over Server Side Rendering?
A. Better performance
B. Lower server cost
C. Page caching
D. All of the above

Answer: D

42. Where does custom Document component go in Next.js?
A. document.js
B. _document.js
C. pages/_document.js
D. docs.js

Answer: B

43. What feature speeds up development of global UI states?
A. React Context
B. Recoil State
C. React Query
D. Redux Toolkit

Answer: D

44. Which file can modify loading sequence state transitions?
A. next-config.js
B. next-sequence.js
C. server.js
D. next.config.js does not control loading sequences

Answer: D

45. What is the name of Next.js’ built-in GraphQL Client?
A. Next GraphQL
B. GraphCMS
C. No built-in GraphQL Client exists
D. GraphNext

Answer: C

46. Which optimization analyzes bundles and removes unused code?
A. Code Minification
B. Tree Shaking
C. Dead Code Elimination
D. Next.js does not optimize bundles

Answer: B

47. What is the Next.js built-in support for analytics called?
A. Next Analytics
B. Next Metrix
C. No built-in analytics solution exists
D. Next Insights

Answer: C

48. How do you fetch data from the browser context in Next.js?
A. Use browser-only Fetch API
B. Use server-side data fetching methods
C. Access local storage
D. Import browser libraries like Axios

Answer: D

49. Which feature allows using Next.js without React?
A. Next Vanilla JS
B. Next.js Renderless Mode
C. Next.js is built for React only
D. React-less Next

Answer: C

50. Which deployment option requires the least configuration?
A. Vercel
B. Traditional Hosting
C. Netlify
D. Amazon S3

Answer: A

51. Which best describes Next.js?
A. A React framework only for static site generation
B. An open-source web framework for developing React apps
C. A replacement for React with server-side rendering capabilities
D. A Node.js server framework

Answer: B

52. What is a major benefit of using Next.js?
A. Easy page routing
B. Built-in server-side rendering
C. Simple deployment
D. Static site generation

Answer: B

53. Which React feature works out of the box in Next.js?

A. Code splitting
B. Server-side rendering
C. Client-side rendering
D. Static site generation

Answer: B

54. What is the default output of next build?
A. Client-side bundled JavaScript
B. Static HTML pages
C. Node.js server code
D. Docker container with bundled app

Answer: B

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