What is the main difference between ASP.NET Web API and ASP.NET MVC?
a. Web API is designed for building HTTP services, while MVC is used for building web applications.
b. MVC is used for building RESTful services, while Web API is used for web applications.
c. Web API uses views and controllers, while MVC uses endpoints and services.
d. MVC is used for data access, while Web API is used for authentication.
Answer: a. Web API is designed for building HTTP services, while MVC is used for building web applications.
Which attribute is used to define an action method in ASP.NET MVC?
a. [ActionName]
b. [Route]
c. [HttpGet]
d. [HttpPost]
Answer: a. [ActionName]
In ASP.NET Web API, how do you specify that an action method should respond to HTTP PUT requests?
a. By using the [HttpPut] attribute
b. By using the [Put] attribute
c. By using the [HttpPatch] attribute
d. By using the [Patch] attribute
Answer: a. By using the [HttpPut] attribute
What is the default route pattern in ASP.NET MVC?
a. {controller}/{action}/{id}
b. api/{controller}/{id}
c. {controller}/{id}
d. api/{controller}/{action}
Answer: a. {controller}/{action}/{id}
How do you define a Web API route in ASP.NET Core?
a. By using the [Route] attribute
b. By configuring routes in web.config
c. By using the MapRoutes method
d. By defining routes in Startup.cs
Answer: a. By using the [Route] attribute
What does the [ApiController] attribute do in ASP.NET Core Web API?
a. It simplifies controller creation by automatically handling model validation and binding
b. It defines routing for Web API controllers
c. It configures authentication for Web API
d. It manages HTTP request logging
Answer: a. It simplifies controller creation by automatically handling model validation and binding
How can you return a 404 Not Found status from a Web API action?
a. By using NotFound()
b. By using HttpNotFound()
c. By returning null
d. By setting the response status code manually
Answer: a. By using NotFound()
What is the role of the ModelState property in ASP.NET MVC?
a. To validate and manage model data
b. To configure routing
c. To handle HTTP requests
d. To manage user sessions
Answer: a. To validate and manage model data
In ASP.NET Web API, how do you bind a parameter from the query string?
a. By using the [FromQuery] attribute
b. By using the [FromBody] attribute
c. By using the [FromRoute] attribute
d. By using the [FromHeader] attribute
Answer: a. By using the [FromQuery] attribute
What is the purpose of the ContentResult class in ASP.NET Core MVC?
a. To return content with a specific media type and content
b. To handle model validation
c. To manage routing
d. To configure authentication
Answer: a. To return content with a specific media type and content
Which method is used to configure Web API routing in ASP.NET Core?
a. app.UseEndpoints(endpoints => { endpoints.MapControllers(); })
b. app.MapRoutes()
c. app.ConfigureRoutes()
d. app.UseRouting()
Answer: a. app.UseEndpoints(endpoints => { endpoints.MapControllers(); })
How do you apply a custom route to an action method in ASP.NET MVC?
a. By using the [Route] attribute
b. By configuring routes in web.config
c. By using the MapRoute method
d. By defining routes in Startup.cs
Answer: a. By using the [Route] attribute
What attribute is used to mark a Web API action method that handles HTTP POST requests?
a. [HttpPost]
b. [Post]
c. [HttpPut]
d. [HttpPatch]
Answer: a. [HttpPost]
How do you specify that an action method in ASP.NET MVC should be executed only for HTTP GET requests?
a. By using the [HttpGet] attribute
b. By using the [Get] attribute
c. By using the [HttpPost] attribute
d. By using the [HttpMethod] attribute
Answer: a. By using the [HttpGet] attribute
What is the purpose of the JsonResult class in ASP.NET MVC?
a. To return JSON-formatted data as a response
b. To handle form submissions
c. To manage routing
d. To handle model binding
Answer: a. To return JSON-formatted data as a response
How do you configure default API routing in ASP.NET Web API?
a. By setting up routes in WebApiConfig.cs
b. By defining routes in web.config
c. By configuring routes in Startup.cs
d. By using the [Route] attribute
Answer: a. By setting up routes in WebApiConfig.cs
What is the role of the IActionResult interface in ASP.NET MVC?
a. To represent different types of action results
b. To configure API routing
c. To manage HTTP requests
d. To handle model validation
Answer: a. To represent different types of action results
How can you handle errors globally in an ASP.NET MVC application?
a. By using exception filters or custom error pages
b. By handling exceptions in each controller
c. By configuring error handling in web.config
d. By using try-catch blocks in Startup.cs
Answer: a. By using exception filters or custom error pages
What is the default value of the action parameter in a route template if not specified?
a. The default value is the name of the action method
b. The default value is Index
c. The default value is Home
d. The default value is Null
Answer: b. The default value is Index
In ASP.NET Core, how do you use dependency injection in Web API controllers?
a. By registering services in Startup.cs and injecting them into controllers
b. By manually creating instances in controllers
c. By configuring dependencies in web.config
d. By using static properties
Answer: a. By registering services in Startup.cs and injecting them into controllers
How do you handle form data in an ASP.NET MVC action method?
a. By using the model binding system
b. By parsing the form data manually
c. By using the HttpRequest object
d. By defining form data in web.config
Answer: a. By using the model binding system
What method is used to return a 200 OK response with data from a Web API action?
a. Ok(data)
b. Success(data)
c. Return(data)
d. Result(data)
Answer: a. Ok(data)
How can you use attribute routing in ASP.NET MVC?
a. By using the [Route] attribute on action methods and controllers
b. By configuring routes in web.config
c. By using the MapRoute method in Startup.cs
d. By defining routes in appsettings.json
Answer: a. By using the [Route] attribute on action methods and controllers
What is the role of the HttpContext class in ASP.NET MVC?
a. To provide information about the current HTTP request and response
b. To configure Web API routing
c. To manage model validation
d. To handle dependency injection
Answer: a. To provide information about the current HTTP request and response
How do you return a custom error response in ASP.NET Web API?
a. By using ContentResult or ObjectResult with custom status codes
b. By using BadRequest() with custom error messages
c. By returning a custom error page
d. By configuring errors in Startup.cs
Answer: a. By using ContentResult or ObjectResult with custom status codes
What attribute is used to define a Web API action method that responds to HTTP DELETE requests?
a. [HttpDelete]
b. [Delete]
c. [HttpRemove]
d. [Remove]
Answer: a. [HttpDelete]
How can you manage request headers in ASP.NET Web API?
a. By using the HttpRequest object to access headers
b. By configuring headers in web.config
c. By setting headers in Startup.cs
d. By defining headers in the request body
Answer: a. By using the HttpRequest object to access headers
What is the function of the View method in an ASP.NET MVC controller?
a. To return a view that renders HTML to the response
b. To handle HTTP requests
c. To manage API routing
d. To validate model data
Answer: a. To return a view that renders HTML to the response
How can you return an empty response with a 204 No Content status code in ASP.NET Web API?
a. By using NoContent()
b. By using Empty()
c. By using NotFound()
d. By using Content()
Answer: a. By using NoContent()
What does the HttpPost attribute signify in ASP.NET Web API?
a. The action method handles HTTP POST requests
b. The action method handles HTTP GET requests
c. The action method handles HTTP PUT requests
d. The action method handles HTTP DELETE requests
Answer: a. The action method handles HTTP POST requests
How do you implement custom validation in ASP.NET MVC?
a. By creating custom validation attributes and applying them to models
b. By configuring validation in web.config
c. By using the ModelState object
d. By managing validation in Startup.cs
Answer: a. By creating custom validation attributes and applying them to models
What is the purpose of the RedirectToAction method in ASP.NET MVC?
a. To redirect the user to a different action method
b. To handle model validation
c. To configure routing
d. To return JSON data
Answer: a. To redirect the user to a different action method
How do you return a response with a specific media type in ASP.NET Web API?
a. By using the ContentResult class with the media type specified
b. By using the JsonResult class
c. By configuring media types in web.config
d. By setting media types in Startup.cs
Answer: a. By using the ContentResult class with the media type specified
What does the [Route] attribute do in an ASP.NET MVC controller?
a. It specifies the URL pattern for the action method
b. It configures authentication
c. It manages dependency injection
d. It handles model binding
Answer: a. It specifies the URL pattern for the action method
How can you handle model binding errors in ASP.NET MVC?
a. By checking the ModelState.IsValid property
b. By configuring errors in web.config
c. By using the ModelState object only
d. By setting error messages in Startup.cs
Answer: a. By checking the ModelState.IsValid property
What is the role of the ActionResult class in ASP.NET MVC?
a. To represent various types of results that an action method can return
b. To handle HTTP requests
c. To manage authentication
d. To configure routing
Answer: a. To represent various types of results that an action method can return
How do you define a default API route in ASP.NET Web API?
a. By configuring routes in WebApiConfig.cs
b. By using the [Route] attribute
c. By defining routes in web.config
d. By setting routes in Startup.cs
Answer: a. By configuring routes in WebApiConfig.cs
What is the purpose of the ViewBag property in ASP.NET MVC?
a. To pass data from a controller to a view dynamically
b. To manage routing
c. To handle model validation
d. To configure Web API routing
Answer: a. To pass data from a controller to a view dynamically
How do you handle query parameters in a Web API action method?
a. By using the [FromQuery] attribute
b. By using the [FromBody] attribute
c. By using the [FromRoute] attribute
d. By configuring parameters in web.config
Answer: a. By using the [FromQuery] attribute
What is the default behavior of the Redirect method in ASP.NET MVC?
a. To redirect the user to a specified URL
b. To handle model binding
c. To return JSON data
d. To manage authentication
Answer: a. To redirect the user to a specified URL
How can you implement versioning in Web API?
a. By using the ApiVersion attribute and configuring versioning in Startup.cs
b. By configuring versioning in web.config
c. By defining versions in Startup.cs
d. By using multiple controllers for each version
Answer: a. By using the ApiVersion attribute and configuring versioning in Startup.cs
What is the purpose of the PartialView method in ASP.NET MVC?
a. To render a partial view that can be embedded within a parent view
b. To handle model validation
c. To configure routing
d. To return JSON data
Answer: a. To render a partial view that can be embedded within a parent view
How do you handle authentication in Web API?
a. By configuring authentication schemes and middleware in Startup.cs
b. By using web.config for authentication settings
c. By managing authentication in controllers
d. By setting authentication headers in action methods
Answer: a. By configuring authentication schemes and middleware in Startup.cs
What is the purpose of the IActionFilter interface in ASP.NET MVC?
a. To define custom logic that runs before and after an action method executes
b. To handle API routing
c. To manage model validation
d. To configure Web API versioning
Answer: a. To define custom logic that runs before and after an action method executes
How can you return a custom error response in an ASP.NET MVC application?
a. By creating a custom error view or using exception filters
b. By setting custom errors in web.config
c. By using HttpResponse methods directly
d. By managing errors in Startup.cs
Answer: a. By creating a custom error view or using exception filters
What is the role of the ActionContext class in ASP.NET MVC?
a. To provide context information about the current HTTP request, action method, and controller
b. To handle Web API routing
c. To manage authentication
d. To configure dependency injection
Answer: a. To provide context information about the current HTTP request, action method, and controller
How do you enable CORS (Cross-Origin Resource Sharing) in ASP.NET Core Web API?
a. By configuring CORS in Startup.cs using services.AddCors() and app.UseCors()
b. By setting CORS policies in web.config
c. By using the [EnableCors] attribute on controllers
d. By defining CORS settings in appsettings.json
Answer: a. By configuring CORS in Startup.cs using services.AddCors() and app.UseCors()
What is the purpose of the JsonResult class in ASP.NET Core MVC?
a. To return JSON-formatted data as a response
b. To handle form submissions
c. To manage routing
d. To handle model binding
Answer: a. To return JSON-formatted data as a response