ASP.NET Core Routing & Controllers

Question 1

Which attribute defines a route template directly on an ASP.NET Core controller action?

Accepted Answer

[Route]

Answer

[HttpGet]

Answer

[Path]

Answer

[Endpoint]

Question 2

What does the [ApiController] attribute do in ASP.NET Core?

Accepted Answer

Enables automatic model validation, binding source inference, and problem details responses

Answer

Registers the controller as a service

Answer

Disables view rendering

Answer

Enforces JSON-only responses

Question 3

What route token represents an action name in a conventional route template?

Accepted Answer

{action}

Answer

[action]

Answer

Answer

$(action)

Question 4

Which return type enables ASP.NET Core Web API actions to return multiple response types with proper metadata?

Accepted Answer

IActionResult or ActionResult<T>

Answer

Task<object>

Answer

HttpResponseMessage

Answer

JsonResult only

Question 5

What is the purpose of [HttpGet("{id}")] on an action method?

Accepted Answer

It constrains the action to GET requests and captures an 'id' route parameter

Answer

It filters GET requests by ID in the query string only

Answer

It generates an ID automatically

Answer

It maps the action to a service by ID

Question 6

What method is called to add MVC controllers with views in ASP.NET Core?

Accepted Answer

services.AddControllersWithViews()

Answer

services.AddMvc()

Answer

services.AddControllers()

Answer

services.AddViewControllers()