Node.Js Interview Questions For Freshers
Explain the concept of clustering in Node.js.
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Explain the difference between Node.js and JavaScript.
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What is the purpose of the 'exports' keyword in Node.js?
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What is the significance of the global object in Node.js?
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Explain the purpose of callback functions in Node.js.
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What is Express.js and how does it simplify Node.js development?
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How can you make an HTTP request in Node.js?
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What is middleware in Node.js?
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What is the difference between readFile and createReadStream in Node.js?
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Explain the concept of streams in Node.js.
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How can you handle errors in Node.js?
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What is the role of the event loop in Node.js?
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What is the purpose of package.json in Node.js?
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What is NPM and what is it used for?
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What is Node.js?
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What is the use of the 'fs' module in Node.js?
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How can you handle file uploads in Node.js?
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What is the 'child_process' module in Node.js used for?
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What is 'npm install' command used for?
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How can you secure a Node.js application?
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What is the purpose of the 'path' module in Node.js?
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Explain the purpose of the 'process' object in Node.js.
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What is 'cluster' module in Node.js?
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How can you handle concurrent requests in Node.js?
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What is the difference between setTimeout and setImmediate in Node.js?
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What is the purpose of the 'os' module in Node.js?
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Explain the concept of event-driven programming in Node.js.
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What is the purpose of 'url' module in Node.js?
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How can you access query parameters in Node.js?
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Node.Js Intermediate Interview Questions
How can you handle query parameters in Express.js?
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What are the advantages of using Express.js framework in Node.js?
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What is the purpose of 'util.promisify' in Node.js?
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What is JWT authentication in Node.js?
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What is 'jsonwebtoken' package in Node.js used for?
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Explain the purpose of 'exports' in Node.js.
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How can you handle form data in Express.js?
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What is 'pm2' in Node.js used for?
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What are the different ways to debug a Node.js application?
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What is 'Buffer' in Node.js used for?
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Explain the concept of middlewares in Express.js.
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How can you schedule tasks in Node.js?
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What is the purpose of 'require' in Node.js?
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What are the different types of HTTP requests in Node.js?
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Explain the concept of streams in Node.js.
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What is 'util' module in Node.js used for?
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How can you handle file downloads in Node.js?
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What is the purpose of 'process.argv' in Node.js?
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How can you handle file system operations in Node.js?
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Explain the concept of async/await in Node.js.
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What are the different ways to handle routing in Node.js?
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Explain the purpose of the 'crypto' module in Node.js.
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How can you create a server in Node.js?
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What is 'module.exports' in Node.js and how does it differ from 'exports'?
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Explain the concept of non-blocking I/O in Node.js.
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What are the different types of streams in Node.js?
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Node.Js Interview Questions For Experienced
How can you handle sessions in Express.js?
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Explain the concept of 'ejs' template engine in Express.js.
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What is 'MongoDB' and how can you integrate it with Node.js?
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Explain the concept of database migration in Node.js.
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Explain the concept of server-side rendering with Node.js.
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What is 'Mongoose' and how can you use it for MongoDB operations in Node.js?
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How can you implement user authentication using JSON Web Tokens (JWT) in Node.js?
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What is 'Multer' in Express.js used for?
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Explain the concept of 'cookie-parser' middleware in Express.js.
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How can you implement WebSocket communication in Node.js?
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What is 'Sequelize' and how can you use it for database operations in Node.js?
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How can you create a RESTful API with Node.js and Express.js?
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What is 'socket.io' and how does it differ from HTTP communication in Node.js?
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What is 'async' library in Node.js used for?
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How can you implement pagination in Node.js?
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What is 'Passport.js' and how can you use it for authentication in Node.js?
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Explain the concept of error handling in Express.js.
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How can you implement file uploading and downloading in Express.js?
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What is 'socket.io' library used for in Node.js?
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How can you implement real-time communication in Node.js?
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Explain the concept of authentication and authorization in Node.js.
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