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Piyush Kumar Singh
Piyush Kumar Singh

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Top 20 most asked NodeJS Questions in Interviews.

Reference : NodeJS

  1. What is Node.js?

  2. What is the difference between Node.js and JavaScript?

  3. What is npm in Node.js?

  4. What is the event-driven model in Node.js?

  5. What is the difference between synchronous and asynchronous programming in Node.js?

  6. What is a callback function in Node.js?

  7. What is the purpose of the require function in Node.js?

  8. What is the role of the fs module in Node.js?

  9. What is the EventEmitter class in Node.js?

  10. What is the purpose of the process object in Node.js?

  11. What is middleware in Node.js?

  12. What is Express.js in Node.js?

  13. What is the role of the http module in Node.js?

  14. What is the event loop in Node.js?

  15. What is a Promise in Node.js?

  16. What is async/await in Node.js?

  17. What is the purpose of the cluster module in Node.js?

  18. What is a callback hell, and how can it be avoided in
    Node.js?

  19. What is the purpose of the path module in Node.js?

  20. How do you handle errors in Node.js?

Other References :

Java8 : Link
Advance Java : Link
Core Java : Link
Java OOP's : Link
Spring Boot : Link
Advanced Spring Boot : Link
Linux : Link
ReactJS : Link
API : Link
OS : Link
NodeJS : Link
Python : Link
HTML : Link

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