What is the primary role of Entity Framework Core in ASP.NET Core applications?
- Object-Relational Mapping (ORM)
- User Authentication
- Web Hosting
- Front-end Development
Entity Framework Core (EF Core) is primarily an Object-Relational Mapping (ORM) framework. It simplifies database operations by allowing developers to work with databases using object-oriented code, making it easier to interact with and manipulate data. User authentication, web hosting, and front-end development are unrelated to EF Core's core functionality.
How can you configure Entity Framework Core to use lazy loading for navigation properties?
- Using the .Include() method
- Enabling it in the DbContext configuration
- Setting UseLazyLoadingProxies to true
- Manually fetching related entities
Entity Framework Core (EF Core) uses lazy loading proxies to enable lazy loading for navigation properties. To configure it, you can set the UseLazyLoadingProxies option to true in the DbContext's configuration. This allows EF Core to create dynamic proxies for your entities, enabling lazy loading for related entities.
For highly secure data transmission in Web APIs, which method is recommended for data transfer?
- HTTPS
- FTP
- HTTP
- TCP
HTTPS (Hypertext Transfer Protocol Secure) is the recommended method for highly secure data transmission in Web APIs. It adds a layer of encryption (SSL/TLS) to the HTTP protocol, ensuring that data transmitted between the client and server is encrypted and secure from eavesdropping or tampering.
Which action result in ASP.NET Core can be utilized to send binary content as the response?
- FileResult
- ObjectResult
- RedirectResult
- ContentResult
To send binary content as the response in ASP.NET Core, you should use the FileResult action result. This result type allows you to send files, such as images, PDFs, or any binary data, in response to a client request. You can specify the file's content type, name, and other details.
When using attribute routing, what is the significance of the order in which routes are defined?
- The order defines the priority of routes
- The order determines the route's visibility
- The order affects route naming
- The order is irrelevant
In attribute routing, the order of route definitions is significant because it determines the priority of routes. Routes are evaluated in the order they are defined, and the first matching route is used. This allows you to control which route handles a particular request when there are multiple possible matches.
Which feature in ASP.NET Core Identity is used to specify the minimum length for user passwords?
- Password Requirements
- Account Lockout
- Two-Factor Authentication
- Role-Based Authorization
ASP.NET Core Identity provides the "Password Requirements" feature to specify criteria for user passwords, including the minimum length. This is essential for enforcing security standards, and developers can configure it as needed in their applications.
For ASP.NET Core applications, which Azure service provides a fully managed platform for building, deploying, and scaling web apps?
- Azure Functions
- Azure App Service
- Azure Kubernetes Service
- Azure Logic Apps
Azure App Service is a Platform-as-a-Service (PaaS) offering that allows developers to build, deploy, and scale web apps and APIs easily. It provides a fully managed environment for hosting ASP.NET Core applications in the Azure cloud.
In a Razor form, how can you prevent the form from being submitted if client-side validation fails?
- Using the onsubmit attribute
- Using the required attribute
- Using the data-val attribute
- Using the no-submit attribute
To prevent a Razor form from being submitted if client-side validation fails, you can use the onsubmit attribute on the form element. By specifying a JavaScript function that returns false when validation fails, you can stop the form submission and show validation errors to the user.
If you needed to add a user to a specific role immediately after creating them programmatically, which method of the UserManager class would you use?
- AddToRoleAsync
- AddClaimAsync
- AddToRole
- AddPasswordAsync
To add a user to a specific role immediately after creating them programmatically, you would use the AddToRoleAsync method of the UserManager class. This method allows you to assign a user to a role, granting them the associated permissions and access rights.
If you were to create a page in an ASP.NET Core MVC application that displays a list of movies, which component would be responsible for determining how this list is presented to the user?
- View
- Controller
- Model
- Middleware
The View component in ASP.NET Core MVC is responsible for determining how data is presented to the user. It defines the layout and structure of the page, including how the list of movies is displayed. The Controller manages user requests and interacts with the Model to retrieve the necessary data.