Which of the following is a built-in Razor Tag Helper in ASP.NET Core?
-
The
tag helper is a built-in Razor Tag Helper in ASP.NET Core. It is used to generate links and forms with correct routing information, making it easier to create URLs that are strongly typed and route to the appropriate controller actions.
You've been introduced to Razor Tag Helpers in ASP.NET Core and want to understand their basic usage. What are Tag Helpers primarily used for in Razor views?
- Formatting date and time values
- Generating HTML elements with server-side logic
- Creating CSS styles
- Running JavaScript code
Tag Helpers in Razor views are primarily used for generating HTML elements with server-side logic. They allow you to create dynamic HTML elements and attributes based on server-side data and logic, making it easier to work with server-side data in your views.
After setting up your new ASP.NET Core website, you find that your site's main logo and stylesheet aren't loading. What could be a potential reason for this issue?
- Incorrect file paths or URLs
- Incompatible browser
- Server overload
- Database connection issue
One of the common reasons for missing images and stylesheets in a web application is incorrect file paths or URLs. Check that the paths specified in your HTML or CSS files are accurate and relative to the 'wwwroot' folder.
Using the {id:int} syntax in an attribute route enforces that the id parameter must be of type ______.
- String
- Integer
- Double
- DateTime
The {id:int} syntax in an attribute route specifies that the id parameter must be of type integer. This is a way to ensure that the data passed in the URL is an integer value, and if it's not, the route won't match.
For projects focused on background tasks and might run as Windows services or Linux daemons, you should use the ________ template.
- Worker
- Web API
- Blazor
- MVC
The Worker template in ASP.NET Core is specifically designed for projects that focus on background tasks. It's ideal for creating services that perform work in the background and can be run as Windows services or Linux daemons. This template provides the necessary infrastructure for background task execution.
Which file extension is typically used to define shared Razor directives that can be utilized across multiple views?
- .cshtml
- .layout
- .razordirectives
- .razorimports
The file extension typically used to define shared Razor directives that can be utilized across multiple views is .razorimports. This file allows you to specify common directives or 'using' statements that should apply to multiple Razor views, streamlining your code and maintaining consistency.
Which of the following best describes a primary feature of ASP.NET Core Identity?
- User Registration and Management
- Image Compression
- Video Editing
- Network Routing
A primary feature of ASP.NET Core Identity is user registration and management. It allows you to create, update, and manage user accounts, including features like user registration, login, password reset, and role-based access control (RBAC).
How does the UseExceptionHandler middleware differ from the UseDeveloperExceptionPage middleware in ASP.NET Core?
- UseExceptionHandler displays custom error pages to users
- UseDeveloperExceptionPage is used only in production
- UseExceptionHandler is for development use only
- UseDeveloperExceptionPage is more secure
The UseExceptionHandler middleware is used to display custom error pages to users when an unhandled exception occurs. UseDeveloperExceptionPage, on the other hand, shows detailed exception information during development, but it's not suitable for production as it can leak sensitive information.
You're learning about ASP.NET Core and come across the term "middleware." What role does middleware play in the processing of a web request?
- Authenticating users
- Handling HTTP requests and responses
- Rendering HTML templates
- Running unit tests
Middleware in ASP.NET Core plays a critical role in processing web requests. It sits between the web server and your application, allowing you to handle HTTP requests and responses. Each middleware component can perform tasks like routing, authentication, logging, and more.
You are building a blog application where only the blog author should be able to edit or delete a post. How would you use the [Authorize] attribute to achieve this behavior?
- Apply [Authorize] to the Edit and Delete actions
- Apply [Authorize] to the entire controller
- Use [Authorize(Roles = "Admin")] for blog authors
- Use [AllowAnonymous] for blog authors
To ensure that only the blog author can edit or delete a post, you would apply the [Authorize] attribute to the Edit and Delete actions in the controller. This allows you to specify authorization at the action level, and you can further customize it to check if the user making the request is the author of the post being edited or deleted. Applying [Authorize] to the entire controller would restrict access to all actions within it, which is not the desired behavior in this case. [Authorize(Roles = "Admin")] is role-based authorization and doesn't address this scenario, and [AllowAnonymous] would allow everyone, which is the opposite of the desired behavior.