🧩 ASP.NET Core – Web Development Interview Topics

This section dives into all major ASP.NET Core concepts required for backend and full-stack development interviews. Topics include middleware, dependency injection, routing, Kestrel, app startup, environment configuration, and more. Each topic includes MCQs, interview Q&A, and real code examples.

• 1. What is ASP.NET Core?
• 2. ASP.NET Core vs .NET Framework in ASP.NET Core
• 3. Role of Kestrel Server in ASP.NET Core
• 4. Middleware and Request Pipeline in ASP.NET Core
• 5. Dependency Injection in ASP.NET Core
• 6. Program.cs vs Startup.cs roles in ASP.NET Core
• 7. Configuration & appsettings.json usage
• 8. Environment-specific settings (Development/Production)
• 9. Writing Custom Middleware in ASP.NET Core
• 10. Logging in ASP.NET Core
• 11. Static File Middleware usage in ASP.NET Core
• 12. Routing fundamentals (UseRouting, endpoints) in ASP.NET Core
• 13. Model Binding & validation basics in ASP.NET Core
• 14. Razor Pages vs MVC architectural model in ASP.NET Core
• 15. Tag Helpers overview in ASP.NET Core
• 16. Filters in MVC (Action, Authorization, Exception) in ASP.NET Core
• 17. Web API controllers & content negotiation in ASP.NET Core
• 18. Versioning ASP.NET Core Web API in ASP.NET Core
• 19. Entity Framework Core introduction in ASP.NET Core
• 20. Code-First vs Database-First in EF Core in ASP.NET Core
• 21. Migrations in EF Core in ASP.NET Core
• 22. LINQ fundamentals in ASP.NET
• 23. Async/Await and async controllers in ASP.NET Core
• 24. Error & Exception Handling Middleware in ASP.NET Core
• 25. CORS configuration & usage in ASP.NET Core
• 26. Authentication vs Authorization in ASP.NET Core
• 27. ASP.NET Core Identity basics in ASP.NET Core
• 28. JWT Authentication integration in ASP.NET Core
• 29. Caching strategies (In-Memory, Distributed) in ASP.NET Core
• 30. Session & State Management in ASP.NET Core
• 31. File Upload handling in ASP.NET Core
• 32. Health Checks & monitoring in ASP.NET Core
• 33. Hosted Services & Background Tasks in ASP.NET Core
• 34. Working with IWebHostEnvironment in ASP.NET Core
• 35. IWebHostBuilder and WebHost vs Generic Host in ASP.NET Core
• 36. Deployment to IIS, Kestrel, Nginx, Docker
• 37. Use of HTTP.sys Server
• 38. Configuration providers (JSON, env, CLI) in ASP.NET Core
• 39. Handling Concurrency in EF Core in ASP.NET Core
• 40. Model validation attributes & custom validation in ASP.NET Core
• 41. Dependency Injection service lifetimes (Transient, Scoped, Singleton) in ASP.NET Core
• 42. Security best practices (HTTPS, HSTS, CSP) in ASP.NET Core
• 43. Implementing Authorization policies & claims in ASP.NET Core
• 44. Rate limiting & request throttling middleware in ASP.NET Core
• 45. Health and metrics integration (Prometheus, App Insights) in ASP.NET Core
• 46. Integrating Swagger/OpenAPI documentation in ASP.NET Core
• 47. Blazor fundamentals in ASP.NET Core in ASP.NET Core
• 48. Razor Class Libraries (RCL) purpose in ASP.NET Core
• 49. SignalR real-time communication usage in ASP.NET Core
• 50. Performance optimization & profiling (.NET instrumentation) in ASP.NET Core