Top 10 Node JS Interview Questions 2023 :

1) What is Node.js?

2) Why use Node.js?

3) How does Node.js work?

4) Why is Node.js Single-threaded? 

5) If Node.js is single-threaded, then how does it handle concurrency?

6) Explain callback in Node.js

7) What are the advantages of using promises instead of callbacks?

8) Explain callback in Node.js.

9) How would you define the term I/O? 

10) How is Node.js most frequently used?

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