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This document provides a list of questions and answers related to Node.js.
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1. What is the purpose of the 'crypto' module in Node.js?
2. How do you create a server using the 'http' module in Node.js?
3. What is the purpose of middleware in Express.js?
4. What is the purpose of the 'path' module in Node.js?
5. How do you use the 'zlib' module in Node.js?
6. What is the difference between '===' and '==' comparison operators in Node.js?
7. How do you handle asynchronous operations in Node.js?
8. How do you create a new object in Node.js?
9. How do you use the 'os' module in Node.js?
10. How do you create a child process in Node.js?
11. What is the purpose of the 'event' module in Node.js?
12. How do you connect to a database using Node.js?
13. What is the purpose of the 'stream' module in Node.js?
14. What is the purpose of the 'express' framework in Node.js?
15. What is the purpose of the 'fs' module in Node.js?
16. What is the purpose of the 'require' function in Node.js?
17. What is the difference between a variable and a constant in Node.js?
18. How do you use the 'readline' module in Node.js?
19. How do you handle errors in Node.js?