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In the MVC design pattern, which component is primarily responsible for handling user input and interactions?

  • Model
  • View
  • Controller
  • Database
In the MVC (Model-View-Controller) design pattern, the Controller is primarily responsible for handling user input and interactions. It receives user requests, processes them, interacts with the Model to retrieve or manipulate data, and determines the appropriate View to render as a response.
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What does the Identity middleware in ASP.NET Core primarily handle?

  • Authentication
  • Data Storage
  • Audio Processing
  • Weather Forecasting
The Identity middleware in ASP.NET Core primarily handles authentication. It intercepts requests to determine if a user is authenticated and provides features like cookie-based authentication, token-based authentication, and integration with external identity providers (e.g., Google, Facebook) for user login.
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You are new to web development and you've heard about ASP.NET Core. What is the primary language used to code in this framework?

  • C#
  • Java
  • Python
  • Ruby
The primary language used for coding in ASP.NET Core is C#. While ASP.NET Core supports multiple languages, C# is the most commonly used language for building ASP.NET Core applications due to its strong integration with the framework and extensive tooling support.
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You've created a new ASP.NET Core application with user registration. Now, you want to ensure that only registered users can post comments. Which attribute would you use to implement this restriction?

  • [AllowAnonymous]
  • [Authorize]
  • [Authorize(Roles = "Admin")]
  • [Authorize(Roles = "User")]
To restrict access to registered users only, you would use the [Authorize] attribute. This attribute can be applied at the controller or action level and ensures that only authenticated users can access the specified resources. It doesn't require specifying roles, as it already implies authenticated users. [AllowAnonymous] would allow both anonymous and registered users, while [Authorize(Roles = "Admin")] and [Authorize(Roles = "User")] are role-based authorizations and are not suitable for this scenario.
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You've been reading about the MVC architecture and are trying to understand the components. If you wanted to add logic to fetch data from a database when a user visits a certain page, which component of MVC would handle this?

  • Model
  • View
  • Controller
  • Middleware
In the MVC (Model-View-Controller) architecture, the 'Model' component handles data-related logic, such as fetching data from a database. It represents the application's data and business logic. The 'Controller' handles user input and coordinates the flow of data between the 'Model' and 'View' components.
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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.
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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.
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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.
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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.
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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.
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