Consistent Hashing: This approach ensures that data is distributed evenly across?

Short answer: shards, minimizing hotspots and ensuring that as new shards are added, data is redistributed evenly. Example: The Order Service might shard its data by customer ID, so each customer's orders are stored in a different database shard.

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.