You can use Visual Studio, a popular integrated development environment (IDE), to create a new ASP.NET Core project. Visual Studio provides a rich set of features for .NET development, making it a preferred choice for many developers. Other IDEs like Eclipse, Xcode, and Android Studio are not typically used for ASP.NET Core development.

SignalR is a library in ASP.NET Core that enables real-time communication between the server and connected clients. It allows for features like chat applications, live notifications, and collaborative experiences in web applications. SignalR uses WebSockets when available but falls back to other techniques like long polling for broader compatibility.

The typical method used to sign a user out in ASP.NET Core is SignOut(). It clears the user's authentication cookies or tokens, effectively ending their authenticated session.

The [Authorize] attribute in ASP.NET Core is used to secure actions or controllers by specifying that only authenticated users are allowed access. It is a fundamental part of ASP.NET Core's security infrastructure.

The "N+1" problem refers to a performance issue in Entity Framework Core where related entities are loaded individually in a loop instead of being loaded together with the main entity. This can lead to a large number of database queries and significantly affect database performance.

In ASP.NET Core MVC applications, the "Views" folder is used to store view templates. Views are responsible for rendering the user interface and displaying data to the user. They are typically associated with controller actions and define how the data is presented to the user.

Microsoft Azure offers a range of services and features specifically tailored for deploying ASP.NET Core applications. These services include Azure App Service, Azure Kubernetes Service (AKS), and Azure Functions, making it a suitable choice for ASP.NET Core development and deployment.

When working with ASP.NET Core Identity, user-related data like passwords and email addresses are stored in the "AspNetUsers" table within the database. ASP.NET Core Identity provides a built-in data model and storage mechanism for managing user accounts and authentication.

The MVC (Model-View-Controller) folder structure in ASP.NET Core typically includes three main folders: Controllers, Views, and Services. While the Controllers folder contains controller classes, and the Views folder contains the user interface components, the Services folder is where you often place business logic and services that the controllers rely on to perform actions.

In ASP.NET Core, middleware components are executed in the order they are added to the Request pipeline. This means that the order of middleware configuration matters, and each middleware component can handle the request and pass it along to the next component. Understanding middleware order is crucial for request processing in ASP.NET Core.

ASP.NET Core achieves cross-platform compatibility by embracing .NET 5 and later versions. These versions are designed to be cross-platform, allowing ASP.NET Core applications to run on Windows, Linux, and macOS. Unlike the older .NET Framework, which was primarily Windows-centric, ASP.NET Core's use of .NET 5 and later versions enables platform-agnostic development.

In ASP.NET Core, the default layout for Razor views is typically specified in a file named "_Layout.cshtml." This file contains the common HTML structure, including headers, footers, and navigation menus, that will be applied to multiple views in your application.