ASP.NET Core Routing & Controllers 3

Question 1

What is the role of UseEndpoints() in ASP.NET Core routing?

Accepted Answer

It executes the endpoints matched by UseRouting()

Answer

It defines the routing table

Answer

It registers controllers with DI

Answer

It adds route constraints

Question 2

What does [Area("Admin")] attribute do on a controller?

Accepted Answer

Associates the controller with the Admin routing area for URL organization

Answer

Restricts access to admin users

Answer

Changes the controller's base URL to /admin

Answer

Creates a new assembly for admin controllers

Question 3

Which method adds conventional MVC routing with a default template in ASP.NET Core?

Accepted Answer

app.MapControllerRoute()

Answer

app.UseConventionalRouting()

Answer

app.AddDefaultRoute()

Answer

app.MapDefaultRoute()

Question 4

How does [FromQuery] bind action parameters in ASP.NET Core?

Accepted Answer

It reads the value from the URL query string

Answer

It reads from the request body

Answer

It reads from route data

Answer

It reads from request headers

Question 5

What does calling Problem() helper method return in an ASP.NET Core API controller?

Accepted Answer

An ObjectResult with ProblemDetails payload and appropriate status code

Answer

An HTML error page

Answer

A plain text error string

Answer

A 500 status code with no body

Question 6

Which attribute restricts an action to accept only HTTP POST requests?

Accepted Answer

[HttpPost]

Answer

[Post]

Answer

[AcceptPost]

Answer

[MethodPost]