Interviews for Dot Net roles focus on a small number of recurring themes. This article is the cheat sheet — what to study, what to skip, and how to talk through your answers.
The high-frequency themes
- C# — Modern C#: records, pattern matching, nullable reference types, `init`-only setters, top-level statements, file-scoped namespaces.
- ASP.NET Core — Cross-platform web framework.
- Entity Framework Core — ORM with LINQ queries, migrations, change tracking.
- Dependency injection — Built-in DI container.
How to structure answers
Open with the one-sentence definition. Give one real-world example. Then explain the trade-off. Interviewers score structured thinking, not encyclopedia recall — practice saying the same answer in three levels of detail.
Common follow-up traps
- "What happens when this fails?" — always have a failure mode ready.
- "How would you scale this 10x?" — show you think about the bottleneck, not just the happy path.
- "What would you change with more time?" — proves you understand the trade-offs you made.
Summary
Talk through three answers out loud today. The act of speaking forces clarity that silent reading never does.