How do you handle database replication for high availability?

Short answer: Database replication is the process of copying and maintaining database objects in multiple databases to ensure high availability and fault tolerance. Types of Replication:

Real-world example (ShopNest)

ShopNest’s SQL Server database stores customers, products, and orders. Good indexes and clear foreign keys keep checkout queries fast and safe.

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.