What is the primary purpose of a Web API in ASP.NET Core?
- Serve as a user authentication system
- Facilitate communication between web applications
- Manage database schema
- Render web pages
A Web API in ASP.NET Core primarily serves to facilitate communication between web applications. It enables applications to exchange data and functionality over HTTP, making it a crucial component for building RESTful services or supporting AJAX requests in web applications. It does not typically handle user authentication or manage database schemas directly.
In a team development scenario, two developers have created separate migrations for different features at the same time. Before merging these changes into the main branch, what precautions or steps should be taken regarding the Identity migrations?
- Delete one developer's migrations to avoid conflicts
- Ensure both developers use the same database provider
- Collaborate to combine the migrations and resolve conflicts
- Let Entity Framework Core handle the merge automatically
When multiple developers work on separate migrations, it's essential to collaborate and combine the migrations before merging into the main branch. This prevents conflicts and ensures a consistent database schema. Entity Framework Core doesn't handle automatic merge of migrations, so developers need to coordinate their efforts to avoid issues.
In an e-commerce application, after a user successfully checks out, you want to redirect them to a confirmation page. Which action result can achieve this redirection?
- Redirect
- Ok
- View
- BadRequest
To achieve a redirection after a successful action, you should use the Redirect action result. It allows you to specify the URL to which the user should be redirected, typically a confirmation page in this case. The Redirect result returns an HTTP 302 status code, indicating a temporary redirect.
If you want to enforce that passwords must contain a non-alphanumeric character in ASP.NET Core Identity, which property should you set?
- RequireNonAlphanumeric
- RequireUppercase
- RequireDigit
- RequireLowercase
In ASP.NET Core Identity, the RequireNonAlphanumeric property should be set to true if you want to enforce that passwords must contain at least one non-alphanumeric character (e.g., special symbol). This adds an extra layer of security to user passwords.
The session information in ASP.NET Core is stored using _________ by default.
- Cookies
- Local Storage
- Session Storage
- Database
In ASP.NET Core, session information is typically stored using cookies by default. Cookies are small pieces of data sent from a web server and stored on the client's browser. They are commonly used to maintain user state and session data across HTTP requests, making them suitable for storing session information.
Dependency injection in ASP.NET Core MVC allows services to be injected into controllers via their _________.
- Constructors
- Properties
- Methods
- Fields
Dependency injection in ASP.NET Core MVC allows services to be injected into controllers via their constructors. This approach promotes the use of constructor injection for better testability and maintainability of your controllers, ensuring that required services are provided when the controller is created.
To ensure all necessary packages and dependencies are up-to-date in an ASP.NET Core project, you'd typically run the dotnet _________ command.
- upgrade
- update
- restore
- clean
To ensure all necessary packages and dependencies are up-to-date in an ASP.NET Core project, you'd typically run the dotnet update command. This command checks for newer versions of packages and updates them in the project file. It helps maintain the project's dependencies and keeps it compatible with the latest libraries and features.
In scenarios with table splitting in Entity Framework Core, how is it ensured that multiple entities map to a single table?
- Using the .ToTable() method with the same table name
- Manually specifying the same columns for multiple entities
- Table splitting doesn't allow multiple entities in one table
- By using the .MapToStoredProcedures() method
To ensure that multiple entities map to a single table in table splitting scenarios, you can use the .ToTable() method with the same table name for both entities. This tells Entity Framework Core to store both entities in the same table in the database.
Which ASP.NET Core feature allows you to implement authentication and authorization logic to protect your Web APIs?
- Dependency Injection
- Middleware
- Entity Framework Core
- Identity
Identity is an ASP.NET Core feature that allows you to implement authentication and authorization logic to secure your Web APIs. It provides user management, role-based access control, and authentication mechanisms like JWT (JSON Web Tokens) out of the box. Developers can easily integrate Identity into their ASP.NET Core applications to manage user authentication and authorization requirements.
You're developing a multi-page ASP.NET Core application. For most pages, you want to use the same header and footer, but for a few pages, you want a different header. How would you best accomplish this with Razor Views?
- Create a custom layout for pages with different headers.
- Use conditional statements in the Razor layout to determine which header to display.
- Create separate views for pages with different headers.
- Modify the _Layout.cshtml file for each page.
To achieve different headers for specific pages in an ASP.NET Core application, you can create a custom layout for those pages. This approach allows you to maintain a consistent structure while customizing headers for specific pages.