In ASP.NET Core, session information is typically stored using cookies by default. Cookies are small pieces of data sent from a web server and stored on the client's browser. They are commonly used to maintain user state and session data across HTTP requests, making them suitable for storing session information.

Dependency injection in ASP.NET Core MVC allows services to be injected into controllers via their constructors. This approach promotes the use of constructor injection for better testability and maintainability of your controllers, ensuring that required services are provided when the controller is created.

To ensure that multiple entities map to a single table in table splitting scenarios, you can use the .ToTable() method with the same table name for both entities. This tells Entity Framework Core to store both entities in the same table in the database.

Razor views in ASP.NET Core are primarily used for creating user interfaces. They allow developers to define the structure and layout of web pages by mixing HTML markup with C# or VB.NET code. Razor views enable dynamic content rendering and help build the presentation layer of web applications.

Kestrel is the lightweight, cross-platform web server that is used by default with ASP.NET Core. It's designed for high performance and is well-suited for hosting ASP.NET Core applications. Developers can also use it in combination with reverse proxy servers like Nginx or Apache for production deployments.

ASP.NET Core Identity provides user authentication, but it doesn't include OAuth as a standard provider. OAuth is a separate authorization framework that can be used with ASP.NET Core for scenarios like external logins, but it's not part of the Identity system.

In the ASP.NET Core middleware pipeline, the order in which middleware components are added matters. If the middleware order is incorrect, it can lead to unexpected behavior. Middleware components are executed in the order they are added to the pipeline.

Identity is an ASP.NET Core feature that allows you to implement authentication and authorization logic to secure your Web APIs. It provides user management, role-based access control, and authentication mechanisms like JWT (JSON Web Tokens) out of the box. Developers can easily integrate Identity into their ASP.NET Core applications to manage user authentication and authorization requirements.

To achieve different headers for specific pages in an ASP.NET Core application, you can create a custom layout for those pages. This approach allows you to maintain a consistent structure while customizing headers for specific pages.

In ASP.NET Core MVC, the business rules and logic are typically located in the Model. The Model represents the application's core logic and data handling, making it the ideal place to implement and enforce business rules. This separation of concerns helps maintain a clean and organized codebase.