Node.js Interview Questions
Priyanshu Chouhan
Prepare for Node.js interviews with a structured, practical, and interview-focused learning experience.
This course contains carefully curated Node.js interview questions ranging from beginner to advanced level. Every topic is explained with clear examples, practical examples, interview tips, and real-world use cases to help you understand Node.js concepts—not just memorize answers.
Whether you're a fresher, an experienced backend developer, or preparing for your next job switch, this course will help you strengthen your Node.js fundamentals and confidently answer interview questions.
📚 Topics Covered
- Introduction to Node.js
- Node.js Architecture
- Event Loop
- Single-Threaded vs Multi-Threaded
- Event-Driven Programming
- Non-Blocking I/O
- Modules (CommonJS & ES Modules)
- NPM & Package Management
- package.json
- Node.js Global Objects
- Process Object
- Buffers
- Streams
- File System (fs)
- Path Module
- OS Module
- HTTP Module
- HTTPS Module
- URL Module
- Timers
- Events Module
- EventEmitter
- Async Programming
- Callbacks
- Promises
- Async/Await
- Error Handling
- Middleware Concepts
- Express.js Basics
- REST APIs
- Authentication & Authorization
- JWT
- Cookies & Sessions
- File Uploads
- Environment Variables
- Cluster Module
- Worker Threads
- Child Processes
- Performance Optimization
- Caching
- Logging
- Security Best Practices
- Rate Limiting
- CORS
- WebSockets
- Testing
- Deployment
- Common Interview Coding Questions
- Real-world Interview Scenarios
🎯 What You'll Get
- ✅ 200+ Node.js Interview Questions
- ✅ Beginner to Advanced Concepts
- ✅ Detailed Explanations
- ✅ Practical Code Examples
- ✅ Interview Tips
- ✅ Common Mistakes & Best Practices
- ✅ Frequently Asked Questions from Product-Based Companies
- ✅ Regular Updates
- ✅ Lifetime Access
👨💻 Who Is This For?
- Software Engineers
- Backend Developers
- Full Stack Developers
- Students & Freshers
- Professionals preparing for technical interviews
🚀 Outcome
By the end of this course, you'll have a solid understanding of Node.js fundamentals and advanced backend concepts, enabling you to confidently tackle technical interviews at startups, product-based companies, and top tech organizations.