Select department names that start with ‘F’?

Short answer: Select department names that start with ‘F’ var deptNames = departments .Where(d => d.Name.StartsWith("F")) .Select(d => d.Name); Select department names that start with ‘F’ var deptNames = departments .Where(d => d.Name.StartsWith("F")) .Select(d => d.Name); Select department names that start with ‘F’ var deptNames = departments .Where(d =>… d.Name.StartsWith("F")) .Select(d => d.Name); Select department names that…

Explain a bit more

start with ‘F’ var deptNames = departments .Where(d => d.Name.StartsWith("F")) .Select(d => d.Name);

Real-world example (ShopNest)

ShopNest maps entities to DTOs with .Select(o => new OrderSummaryDto { Id = o.Id, Total = o.Total }) so the API does not leak internal fields.

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.