How can you restrict certain routes to be accessed only via specific HTTP methods in ASP.NET Core MVC?
- Using Attribute Routing
- By configuring the "app.UseRouting()" middleware
- Through the "ActionFilterAttribute"
- By modifying the "Startup.cs" file
You can restrict routes to specific HTTP methods in ASP.NET Core MVC using attribute routing. By decorating your controller actions or route templates with attributes like [HttpGet] or [HttpPost], you specify which HTTP methods are allowed to access those routes.
What kind of testing is primarily focused on testing the interactions between different parts of a system, like services, databases, and external systems?
- Integration Testing
- Unit Testing
- Performance Testing
- User Acceptance Testing
Integration testing is specifically designed to test how different parts of a system work together. In the context of ASP.NET Core, it checks the interactions between services, databases, and external systems to ensure that they function correctly as a whole.
After setting up your ASP.NET Core development environment, you need to ensure that the application can be containerized. What would be your primary focus when adjusting the development setup?
- Implement Dependency Injection
- Optimize Database Queries
- Create Docker Containers
- Configure Logging
The primary focus when adjusting the development setup for containerization should be on creating Docker containers. Containerization is a crucial step for portability and scalability, allowing you to package your ASP.NET Core application and its dependencies for deployment in various environments.
You're working on an ASP.NET Core application and you've been tasked to create a form that allows users to edit their profiles. After submitting the form, you want the data to be validated on the server side and any validation errors to be displayed next to the respective form fields. What combination of tools and methods would you employ to achieve this?
- Model Validation Attributes and Partial Views
- Client-side JavaScript Validation and Web API Endpoints
- Server-side Blazor Components and AJAX Calls
- ASP.NET Core Middleware and jQuery
To achieve server-side validation and display validation errors next to form fields, you can use Model Validation Attributes along with Partial Views in ASP.NET Core. Model Validation Attributes allow you to annotate your model properties with validation rules, and Partial Views enable you to render the form fields and errors in a modular way.
While trying to register a new user on your website, you encounter an error related to the database schema. Which aspect of ASP.NET Core might be the root cause of this issue?
- Routing configuration
- Middleware order
- Connection string
- Entity Framework Core configuration
If you encounter an error related to the database schema while registering a new user, it is likely due to an issue with Entity Framework Core configuration. This includes the mapping between your application's models and the database tables. Check your DbContext, entity configurations, and database connection to resolve the issue.
What significant change was introduced in ASP.NET Core compared to its predecessor, ASP.NET?
- Cross-Platform Compatibility
- Only for Windows Servers
- Proprietary License
- Supports Only C#
ASP.NET Core introduced a significant change by achieving cross-platform compatibility. Unlike its predecessor, ASP.NET Core can run on multiple operating systems, including Windows, Linux, and macOS, making it more versatile and accessible for developers.
ASP.NET Core is a successor to which of the following frameworks?
- ASP.NET MVC
- ASP.NET Web Forms
- Classic ASP
- PHP
ASP.NET Core is a successor to the ASP.NET MVC framework. While ASP.NET Web Forms and Classic ASP were earlier web development technologies from Microsoft, ASP.NET Core represents a more modern and flexible approach to web development.
How does ASP.NET Core maintain its modularity compared to its predecessor?
- Through NuGet Packages
- Through a Monolithic Architecture
- Through Tight Coupling
- Through Proprietary Components
ASP.NET Core achieves modularity through the extensive use of NuGet packages. This means that various components and libraries are organized as packages, making it easy to update, replace, or extend specific parts of the framework without affecting the entire application. This is a significant departure from the monolithic architecture of its predecessor, which had tightly coupled components and fewer modular options.
Which method in Entity Framework Core is primarily used for tracking changes made to an entity?
- Update
- Add
- Attach
- Remove
The Attach method in Entity Framework Core is primarily used for tracking changes made to an entity. When you attach an entity, EF Core starts tracking it, and any changes made to that entity will be detected and persisted when you call SaveChanges. This is especially useful when you want to work with entities that have been detached from the context.
You notice that despite having a "Details" action method in your "Products" controller, navigating to "/Products/Details/5" results in a 404 error. What could be a probable cause?
- Incorrect route configuration
- Missing View file
- Authorization issues
- Database connectivity issues
The most probable cause of a 404 error when accessing an action method is incorrect route configuration. Ensure that the route for the "Details" action method in the "Products" controller is properly configured to accept the required parameters, such as the product ID (e.g., "{controller}/{action}/{id}").