When dealing with file downloads in ASP.NET Core, which action result allows you to send a byte array as the response along with a download dialog to the client?
- FileContentResult
- ObjectResult
- JsonResult
- StatusCodeResult
The FileContentResult action result in ASP.NET Core is used to send a byte array as the response along with a download dialog to the client. It's commonly used for file downloads like PDFs, images, or other binary files. The response content is a byte array, and you can specify the file's content type and download filename.
If you want to create a custom middleware, which method signature should it follow?
- Task InvokeAsync(HttpContext context)
- void Configure(IApplicationBuilder app)
- void Execute(HttpContext context)
- Task Run(HttpContext context)
Custom middleware in ASP.NET Core should follow the Task InvokeAsync(HttpContext context) method signature. This method is called for each HTTP request and allows you to implement your custom logic within the middleware.
During user registration, you notice that users can set very simple passwords like "password123". You want to enforce stricter password rules. Where in ASP.NET Core can you set these rules?
- Startup.cs
- appsettings.json
- Identity Configuration
- ConfigureServices
You can enforce stricter password rules in ASP.NET Core Identity Configuration. In the Identity Configuration, you can customize password requirements such as length, required character types, and more to ensure stronger password policies for your application.
When optimizing ASP.NET Core applications for performance, developers often use the _________ server in conjunction with a reverse proxy.
- Kestrel
- Apache
- Nginx
- Tomcat
When optimizing ASP.NET Core applications for performance, developers often use the Kestrel server in conjunction with a reverse proxy like Nginx or Apache. Kestrel is a lightweight, cross-platform web server optimized for ASP.NET Core, and it's often used as the front-end server while a reverse proxy handles tasks like load balancing and SSL termination.
You're developing a multi-tenant application where each tenant has its own database. Which Entity Framework Core feature can help you manage multiple databases effectively?
- Dynamic Connection Strings
- DbContext Pooling
- Database Sharding
- Lazy Loading
DbContext Pooling in Entity Framework Core allows you to efficiently manage multiple database connections. In a multi-tenant application, you can use DbContext pooling to reuse and efficiently manage connections for each tenant's database, improving performance and resource utilization.
You're designing a form in your Razor view and want to leverage built-in tag helpers for form generation. Which directive should you ensure is present at the top of your view to use these tag helpers?
- @addTagHelper
- @model
- @using
- @inject
To use built-in tag helpers for form generation in an ASP.NET Core Razor view, you should ensure the presence of the @addTagHelper directive at the top of your view. This directive specifies which tag helpers should be available in the view and is typically configured in the _ViewImports.cshtml file for global usage.
You are adding a feature where administrators can create users from the admin dashboard. After creating a user, you want to send them an email to confirm their account. Which method would you use to generate the email confirmation token?
- UserManager
.GenerateEmailConfirmationTokenAsync() - UserManager
.GeneratePasswordResetTokenAsync() - UserManager
.ConfirmEmailAsync() - UserManager
.GetUserIdAsync()
To generate an email confirmation token for a newly created user, you should use UserManager.GenerateEmailConfirmationTokenAsync(). This token can be sent to the user to confirm their email address.
For better user experience, AJAX can be employed in Razor forms to submit the form without a full _________ of the page.
- Refresh
- Reload
- Redraw
- Postback
AJAX (Asynchronous JavaScript and XML) can be employed in Razor forms to submit the form without a full Postback of the page. This technique allows you to send and receive data from the server without refreshing or reloading the entire web page, resulting in a smoother and more responsive user experience.
You're just starting with ASP.NET Core and Entity Framework. You've created your entity classes, but now you need a way to interact with the database. Which class should you create to manage this?
- DbContext
- DbSet
- SqlConnection
- EntityConnection
In Entity Framework Core, the DbContext class is responsible for managing database connections, tracking changes, and serving as the main entry point for interacting with the database. It provides a bridge between your entity classes and the underlying database, allowing you to perform operations like querying, inserting, updating, and deleting data.
For containerized ASP.NET Core applications aiming for microservice architectures, which tool integration in Visual Studio provides tools for building, running, and orchestrating Docker containers?
- Docker Hub
- Kubernetes
- Azure Kubernetes Service
- Docker Tools
Docker Tools in Visual Studio provide a comprehensive set of features for containerized ASP.NET Core applications. It allows developers to build, run, and orchestrate Docker containers right from within Visual Studio, making it a powerful tool for microservices development.