Can you explain the concept of distributed locks in microservices?

Short answer: And when you would need them? Distributed locks are used in microservices architectures to prevent concurrent access to a shared resource or data across multiple services.

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.