What is ORM (Object-Relational Mapping)?

Short answer: How does EF Core implement it? ORM is a technique that maps objects in code to relational database tables. EF Core implements ORM by mapping .NET classes (entities) to database tables using DbContext, DbSet, and conventions or Fluent API.

Real-world example (ShopNest)

ShopNest’s order service uses EF Core to save an Order and its line items in one SaveChangesAsync() call inside a transaction.

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.