In the earlier versions of ASP.NET Core that used project.json, which section would you look into to find out the target framework(s) for the application?

  • dependencies
  • frameworks
  • scripts
  • buildOptions
In project.json files used in earlier versions of ASP.NET Core, the "frameworks" section was used to define the target framework(s) for the application. This section specified the runtime and API surface that the application would use.

You're trying to locate your application's main CSS files in an ASP.NET Core project. In which directory would you typically find them?

  • wwwroot/css
  • Controllers
  • Models
  • Views
In an ASP.NET Core project, static web assets, such as CSS files, JavaScript files, and images, are typically stored in the "wwwroot" directory. The "wwwroot/css" folder is a common location for CSS files. This separation allows these assets to be served directly to clients without going through the application's routing and controllers.

The process of generating a unique token for password reset or email confirmation in ASP.NET Core Identity is handled by the _________ service.

  • TokenGeneration
  • EmailService
  • TokenService
  • IdentityServer
The process of generating a unique token for password reset or email confirmation in ASP.NET Core Identity is handled by the TokenService. This service generates tokens for various purposes, such as password reset, email confirmation, and two-factor authentication. It ensures the security and uniqueness of these tokens, making them suitable for authentication and authorization processes.

For configuration in an ASP.NET Core application, which of the following providers is NOT a default configuration provider?

  • JSON Configuration Provider
  • XML Configuration Provider
  • Environment Variables Configuration Provider
  • Database Configuration Provider
In ASP.NET Core, JSON, XML, and Environment Variables Configuration Providers are default providers for configuration settings. However, Database Configuration Provider is not a default provider. Developers typically use it when they need to store configuration settings in a database.

Which method is commonly used in the Startup.cs file to enable the serving of static files in an ASP.NET Core application?

  • app.UseStaticFiles()
  • app.EnableStaticFiles()
  • app.ServeStaticFiles()
  • app.StaticFiles()
The app.UseStaticFiles() method is commonly used in the Startup.cs file to enable the serving of static files in an ASP.NET Core application. This middleware allows you to serve files such as HTML, CSS, JavaScript, and images directly from your web application. It's a crucial step for rendering client-side resources.

When using Entity Framework Core, how can developers specify relationships like one-to-one, one-to-many, or many-to-many between entities?

  • Fluent API
  • Annotations
  • Data Annotations
  • Model Builder
Developers can specify relationships like one-to-one, one-to-many, or many-to-many between entities using the Fluent API in Entity Framework Core. The Fluent API provides a more flexible and explicit way to define relationships and configure various aspects of the database schema.

How can you handle optimistic concurrency in Entity Framework Core?

  • Use database locks
  • Use pessimistic concurrency
  • Use timestamps or row version columns
  • Manually update records
Optimistic concurrency in EF Core is typically handled by using timestamps or row version columns in the database. When two users try to update the same record concurrently, EF Core checks if the row version has changed since the data was initially loaded, and if so, it raises a concurrency exception, allowing you to handle the conflict.

You're reviewing a colleague's code and notice that they've added the same namespace to multiple Razor views. How can you suggest an optimization to this approach?

  • Leave it as is, it's the standard practice
  • Suggest moving the namespace declaration to the _Layout.cshtml file
  • Suggest moving the namespace declaration to the _ViewImports.cshtml file
  • Remove the namespace declaration altogether
The optimization suggestion would be to move the common namespace declaration to the _ViewImports.cshtml file. This way, it's defined once and is available for all views, reducing redundancy and making it easier to manage.

In SignalR, which transport method does it fall back to if WebSockets are not available?

  • Server-Sent Events (SSE)
  • Long Polling
  • WebRTC
  • gRPC
SignalR is a real-time framework for ASP.NET Core that supports various transport methods. When WebSockets are not available due to network restrictions or browser compatibility, SignalR falls back to Long Polling. Long Polling involves sending a request to the server, keeping it open until new data is available, and then responding.

You've been asked to add a feature to your ASP.NET Core web application that allows live chat functionality. Which ASP.NET Core technology would help facilitate this feature?

  • SignalR
  • Entity Framework Core
  • ASP.NET Web Forms
  • Blazor
SignalR is a real-time web framework in ASP.NET Core that enables features like live chat. It allows bi-directional communication between the server and connected clients, making it ideal for building interactive and real-time applications. The other options are not related to live chat functionality.