How is Node.js different from traditional web servers like Apache?

Short answer: Feature Node.js Apache Thread Model Single-threaded event loop Multi-threaded I/O Non-blocking Blocking by default Performance Very high for I/O operations Good but resource intensive Use Case Real-time apps, APIs Websites, PHP apps 📌 Example: For a chat application or API server with thousands of concurrent users, Node.js performs better than Apache.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.