Scalability Needs:?

Short answer: For applications with high throughput, NoSQL databases often offer horizontal scalability and better performance under load. SQL databases are often limited in scaling horizontally without additional work, but they provide rich querying capabilities.

Real-world example (ShopNest)

ShopNest splits Catalog, Cart, Order, and Payment into services so teams can deploy catalog changes without redeploying payments.

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.