In a project review, you noticed that the production database connection string is exposed in appsettings.json. How should you securely manage this connection string in an ASP.NET Core application?

  • Use User Secrets
  • Encrypt the appsettings.json file
  • Store it in an environment variable
  • Use a configuration file in the project root
In an ASP.NET Core application, it's not secure to expose sensitive information like a production database connection string in appsettings.json. To securely manage it, you should store it in an environment variable. This approach helps protect sensitive data from accidental exposure and is a best practice for configuration management in production environments.

Your team is concerned about the security of your new web application. What are some built-in features in ASP.NET Core to help safeguard your application?

  • Authentication and Authorization
  • Data Serialization
  • Code Optimization
  • UI Design Patterns
ASP.NET Core provides robust built-in features for security. Authentication and Authorization are fundamental to securing web applications by controlling user access and protecting sensitive data. These features help safeguard your application against unauthorized access and attacks.

In your new job, you're asked to develop a registration system for users. Which feature in ASP.NET Core provides out-of-the-box functionalities for user registration and authentication?

  • Identity
  • Entity Framework Core
  • Middleware
  • Dependency Injection
ASP.NET Core Identity is a built-in membership system that provides out-of-the-box functionalities for user registration and authentication. It simplifies tasks like user management, password hashing, and role-based authorization in ASP.NET Core applications.

Which of the following views would most likely correspond to the user registration process in an ASP.NET Core application?

  • Login.cshtml
  • Home.cshtml
  • Register.cshtml
  • Profile.cshtml
The Register.cshtml view typically corresponds to the user registration process in an ASP.NET Core application. This view usually contains the registration form where users can enter their information to create an account.

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.