Explain the purpose of Express.js. How do you create routes and handle middleware?
Node Interview Questions
1,043 node interview questions shared by candidates
Can you describe the process of scaling a Node.js application horizontally and vertically?
What is the purpose of package.json in Node.js projects?
Describe the difference between callbacks and promises in Node.js.
Explain the event-driven architecture of Node.js and how it handles asynchronous operations.
Discuss techniques for optimizing the performance of a Node.js server handling a large number of concurrent requests.
Explain how the Node.js event loop works. How does it differ from traditional threading models in other languages?
Explain the difference between require and import statements in Node.js.
What considerations do you take into account when deploying Node.js applications in a production environment?
How do you connect a Node.js application to a database like MongoDB or MySQL?
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