• How does the event loop work in Node.js?
• Synchronous vs asynchronous code in Node.js
• What is Node.js and how does it work?
• Error handling patterns in Node.js
• CommonJS vs es modules in Node.js
• What are streams in Node.js?
• What is middleware in Express.js and how does it work?
• What is the cluster module in Node.js?
• What are worker threads in Node.js?
• What is libuv and how does it enable async i/o in Node.js?
• How to work with environment variables in Node.js?
• What is package.json and how does npm work?
• What is eventemitter in Node.js?
• What are child processes in Node.js?
• What is a buffer in Node.js?
• What is package-lock.json?
• What is error-first callback pattern?
• What is the difference between promise.all and promise.allsettled?
• What is promisification?
• What is the difference between process.nextTick() and setImmediate()?
• How to detect and prevent memory leaks in Node.js?
• How does Garbage Collection work in Node.js (V8)?
• What are the key security best practices in Node.js?
• How does the File System (fs) module work in Node.js?
• What is PM2 and how to manage Node.js processes in production?
• What are the most common design patterns in Node.js?
• How to use the Crypto module in Node.js for hashing and encryption?
• How does the HTTP module work in Node.js?
• How do Timers and scheduling work in Node.js?