What is polyglot persistence, and why is it relevant in a microservices architecture?

Short answer: pplication based on the specific needs of each service. In a microservices architecture, each service can have its own database optimized for its particular requirements, making it more efficient and scalable.

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.