What are the OOPs (Object-Oriented Programming) concepts in C#? Explain with examples. How can you restrict a class from being inherited in C#? Is multiple inheritance possible in C#? If not, how can we achieve it? What are Generics in C#? Why are they used? What is Garbage Collection in C#? How does it work? What is the difference between an Abstract Class and an Interface in C#? What is a Partial Class in C#? Why and when is it used? What is a StringBuilder in C#? Why is it used instead of string? What is the difference between ASP.NET MVC and ASP.NET Web API? What are Filters in ASP.NET MVC/Web API? What are the types of filters? What is the filter execution order (hierarchy) in ASP.NET Core? What is Output Caching in ASP.NET Core? How is it implemented? How long will Output Cache be available in .NET Core? Write a program to achieve output cache. What is Attribute Routing in ASP.NET Core? How is it different from Convention-based Routing? Write a program to achieve attribute routing What are Data Annotations in ASP.NET Core? Why are they used? What is the difference between Web API and Web Services in .NET? What is the difference between REST and SOAP? What is CORS in ASP.NET Core? Why is it needed? How will you secure APIs in ASP.NET Core? Is it possible to return a View from a Web API in ASP.NET Core? What is Dependency Injection (DI) in ASP.NET Core? How will you integrate Dependency Injection (DI) in ASP.NET Core? How will you perform Database Operations in ASP.NET Core? What are the different approaches in Entity Framework Core (EF Core)? Which EF Core approach scales best for large‑scale applications? What is DbContext in Entity Framework Core? What is Lazy Loading and Eager Loading in Entity Framework Core? Is it possible to call a stored procedure in Entity Framework Core? How does authentication work in your project? What is the difference between AngularJS and Angular? Which architecture does Angular follow? What are Components in Angular? Command to Generate a Component in Angular What is a Module in Angular? Write a code for module in angular. What is a Directive in Angular? How do you call an API in Angular? Write a program to call 'test.com' in angular What is Two-Way Data Binding in Angular? What is Virtual DOM in angular? How do you pass data between components in Angular? What is ngOnChanges() in Angular? What is ngOnDestroy() in Angular? How will you implement authentication in Angular? What is AOT (Ahead-of-Time) Compilation in Angular? What are the types of SQL commands? What is GROUP BY in SQL and how is it used? What are Aggregate Functions in SQL? What is the difference between WHERE and HAVING in SQL? What is a Cursor in SQL? What are Triggers in SQL? What is the difference between CTE (Common Table Expression) and Temporary Table in SQL? What is SQL Injection?