Node JS interviews Question

1. What is Node.js?
2. What is the difference between Node.js and JavaScript?
3. Is Node.js single-threaded?
4. What kind of API function is supported by Node.js?
5. What is a module in Node.js?
6. What is npm and its advantages?
7. What is middleware?
8. How does Node.js handle concurrency despite being single-threaded?
9. What is the control flow in Node.js?
10. What do you mean by the event loop in Node.js?
11. What are the main disadvantages of Node.js?
12. What is REPL in Node.js?
13. How to import a module in Node.js?
14. What is the difference between Node.js and AJAX?
15. What is package.json in Node.js?
16. What is the most popular Node.js framework used these days?
17. What are promises in Node.js?
18. What is event-driven programming in Node.js?
19. What is buffer in Node.js?
20. What are streams in Node.js?
21. Explain crypto module in Node.js.
22. What is callback hell?
23. Explain the use of the timers module in Node.js.
24. What is the difference between setImmediate() and process.nextTick() methods?
25. What is the difference between setTimeout() and setImmediate() methods?
26. What is the difference between spawn() and fork() methods?
27. Explain the use of the passport module in Node.js.
28. What is a fork in Node.js?
29. What are the three methods to avoid callback hell?
30. What is body-parser in Node.js?
31. What is CORS in Node.js?
32. Explain the tls module in Node.js.
33. What is a cluster in Node.js?
34. How to manage sessions in Node.js?
35. Explain the types of streams in Node.js.
36. How can we implement authentication and authorization in Node.js?
37. Explain the packages used for file uploading in Node.js.
38. How to handle database connections in Node.js?
39. How to read command line arguments in Node.js?
40. What are child processes in Node.js?

Link:

https://gist.github.com/paulfranco/9f88a2879b7b7d88de5d1921aef2093b

https://github.com/Gauthamjm007/Backend-NodeJS-Golang-Interview_QA/blob/master/README.md

https://github.com/Devinterview-io/node-interview-questions/blob/main/README.md

https://github.com/sudheerj/javascript-interview-questions/blob/master/README.md

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