How Does The 'page Lifecycle' Of Asp.net Mvc Works?
Below are the processed followed in the sequence
App initializWhat is Separation of Concerns in ASP.NET ASP.Net MVCation
Routing
Instantiate and execute controller
Locate and invoke controller action
Instantiate and render view.
Explain The Advantages Of Asp.net Mvc Over Asp.net?
Provides a clean separation of concerns among UI (Presentation layer), model (Transfer objects/Domain Objects/Entities) and Business Logic (Controller).
Easy to UNIT Test.
Improved reusability of model and views. We can have multiple views which can point to the same model and vice versa.
Improved structuring of the code.
What Is Separation Of Concerns In Asp.net Asp.net Mvc?
It is the process of breaking the program into various distinct features which overlaps in functionality as little as possible. ASP.Net MVC pattern concerns on separating the content from presentation and data-processing from content.
List out few different return types of a controller action method?
View Result
Javascript Result
Redirect Result
Json Result
Content Result
Mention what is the difference between adding routes, to a webform application and an MVC application?
To add routes to a webform application, we can use MapPageRoute() method of the RouteCollection class, where adding routes to an MVC application, you can use MapRoute() method.
Mention what are the two ways to add constraints to a route?
The two methods to add constraints to a route is
Use regular expressions
Use an object that implements IRouteConstraint Interface
Mention two instances where routing is not implemented or required?
Two instance where routing is not required are
When a physical file is found that matches the URL pattern
When routing is disabled for a URL pattern
Mention what are main benefits of using MVC?
There are two key benefits of using MVC
As the code is moved behind a separate class file, you can use the code to a great extent
As behind code is simply moved to.NET class, it is possible to automate UI testing. This gives an opportunity to automate manual testing and write unit tests.
Mention what is the advantages of MVC?
MVC segregates your project into a different segment, and it becomes easy for developers to work on
It is easy to edit or change some part of your project that makes project less development and maintenance cost
MVC makes your project more systematic
Mention what “beforFilter()”,“beforeRender” and “afterFilter” functions do in Controller?
beforeFilter(): This function is run before every action in the controller. It’s the right place to check for an active session or inspect user permissions.
beforeRender(): This function is called after controller action logic, but before the view is rendered. This function is not often used, but may be required If you are calling render() manually before the end of a given action
afterFilter(): This function is called after every controller action, and after rendering is done. It is the last controller method to run
Explain the role of components Presentation, Abstraction and Control in MVC?
Presentation: It is the visual representation of a specific abstraction within the application
Abstraction: It is the business domain functionality within the application
Control: It is a component that keeps consistency between the abstraction within the system and their presentation to the user in addition to communicating with other controls within the system
Explain the role of “ActionFilters” in MVC?
In MVC “ ActionFilters” help you to execute logic while MVC action is executed or its executing.
Explain what are the steps for the execution of an MVC project?
The steps for the execution of an MVC project includes
Receive first request for the application
Performs routing
Creates MVC request handler
Create Controller
Execute Controller
Invoke action
Execute Result
Explain what is Model-View-Controller?
MVC is a software architecture pattern for developing web application. It is handled by three objects Model-View-Controller.
Mention what does Model-View-Controller represent in an MVC application?
In an MVC model,
Model– It represents the application data domain. In other words applications business logic is contained within the model and is responsible for maintaining data
View– It represents the user interface, with which the end users communicates. In short all the user interface logic is contained within the VIEW
Controller– It is the controller that answers to user actions. Based on the user actions, the respective controller responds within the model and choose a view to render that display the user interface. The user input logic is contained with-in the controller
Explain in which assembly is the MVC framework is defined?
The MVC framework is defined in System.Web.Mvc.
Explain what is routing? What are the three segments for routing is important?
Routing helps you to decide a URL structure and map the URL with the Controller.
The three segments that are important for routing is
ControllerName
ActionMethodName
Parameter
Mention what is the difference between “ActionResult” and “ViewResult” ?
“ActionResult” is an abstract class while “ViewResult” is derived from “AbstractResult” class. “ActionResult” has a number of derived classes like “JsonResult”, “FileStreamResult” and “ViewResult” .
“ActionResult” is best if you are deriving different types of view dynamically.
Explain how you can send the result back in JSON format in MVC?
In order to send the result back in JSON format in MVC, you can use “JSONRESULT” class.
List out the types of result in MVC?
In MVC, there are twelve types of results in MVC where “ActionResult” class is the main class while the 11 are their sub-types
ViewResult
PartialViewResult
EmptyResult
RedirectResult
RedirectToRouteResult
JsonResult
JavaScriptResult
ContentResult
FileContentResult
FileStreamResult
FilePathResult
Mention what is the importance of NonActionAttribute?
All public methods of a controller class are treated as the action method if you want to prevent this default method then you have to assign the public method with NonActionAttribute.
Below are the processed followed in the sequence
App initializWhat is Separation of Concerns in ASP.NET ASP.Net MVCation
Routing
Instantiate and execute controller
Locate and invoke controller action
Instantiate and render view.
Explain The Advantages Of Asp.net Mvc Over Asp.net?
Provides a clean separation of concerns among UI (Presentation layer), model (Transfer objects/Domain Objects/Entities) and Business Logic (Controller).
Easy to UNIT Test.
Improved reusability of model and views. We can have multiple views which can point to the same model and vice versa.
Improved structuring of the code.
What Is Separation Of Concerns In Asp.net Asp.net Mvc?
It is the process of breaking the program into various distinct features which overlaps in functionality as little as possible. ASP.Net MVC pattern concerns on separating the content from presentation and data-processing from content.
List out few different return types of a controller action method?
View Result
Javascript Result
Redirect Result
Json Result
Content Result
Mention what is the difference between adding routes, to a webform application and an MVC application?
To add routes to a webform application, we can use MapPageRoute() method of the RouteCollection class, where adding routes to an MVC application, you can use MapRoute() method.
Mention what are the two ways to add constraints to a route?
The two methods to add constraints to a route is
Use regular expressions
Use an object that implements IRouteConstraint Interface
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| OpenText Most Frequently Asked ASP.NET MVC Interview Questions Answers |
Mention two instances where routing is not implemented or required?
Two instance where routing is not required are
When a physical file is found that matches the URL pattern
When routing is disabled for a URL pattern
Mention what are main benefits of using MVC?
There are two key benefits of using MVC
As the code is moved behind a separate class file, you can use the code to a great extent
As behind code is simply moved to.NET class, it is possible to automate UI testing. This gives an opportunity to automate manual testing and write unit tests.
Mention what is the advantages of MVC?
MVC segregates your project into a different segment, and it becomes easy for developers to work on
It is easy to edit or change some part of your project that makes project less development and maintenance cost
MVC makes your project more systematic
Mention what “beforFilter()”,“beforeRender” and “afterFilter” functions do in Controller?
beforeFilter(): This function is run before every action in the controller. It’s the right place to check for an active session or inspect user permissions.
beforeRender(): This function is called after controller action logic, but before the view is rendered. This function is not often used, but may be required If you are calling render() manually before the end of a given action
afterFilter(): This function is called after every controller action, and after rendering is done. It is the last controller method to run
Explain the role of components Presentation, Abstraction and Control in MVC?
Presentation: It is the visual representation of a specific abstraction within the application
Abstraction: It is the business domain functionality within the application
Control: It is a component that keeps consistency between the abstraction within the system and their presentation to the user in addition to communicating with other controls within the system
Explain the role of “ActionFilters” in MVC?
In MVC “ ActionFilters” help you to execute logic while MVC action is executed or its executing.
Explain what are the steps for the execution of an MVC project?
The steps for the execution of an MVC project includes
Receive first request for the application
Performs routing
Creates MVC request handler
Create Controller
Execute Controller
Invoke action
Execute Result
Explain what is Model-View-Controller?
MVC is a software architecture pattern for developing web application. It is handled by three objects Model-View-Controller.
Mention what does Model-View-Controller represent in an MVC application?
In an MVC model,
Model– It represents the application data domain. In other words applications business logic is contained within the model and is responsible for maintaining data
View– It represents the user interface, with which the end users communicates. In short all the user interface logic is contained within the VIEW
Controller– It is the controller that answers to user actions. Based on the user actions, the respective controller responds within the model and choose a view to render that display the user interface. The user input logic is contained with-in the controller
Explain in which assembly is the MVC framework is defined?
The MVC framework is defined in System.Web.Mvc.
Routing helps you to decide a URL structure and map the URL with the Controller.
The three segments that are important for routing is
ControllerName
ActionMethodName
Parameter
Mention what is the difference between “ActionResult” and “ViewResult” ?
“ActionResult” is an abstract class while “ViewResult” is derived from “AbstractResult” class. “ActionResult” has a number of derived classes like “JsonResult”, “FileStreamResult” and “ViewResult” .
“ActionResult” is best if you are deriving different types of view dynamically.
Explain how you can send the result back in JSON format in MVC?
In order to send the result back in JSON format in MVC, you can use “JSONRESULT” class.
List out the types of result in MVC?
In MVC, there are twelve types of results in MVC where “ActionResult” class is the main class while the 11 are their sub-types
ViewResult
PartialViewResult
EmptyResult
RedirectResult
RedirectToRouteResult
JsonResult
JavaScriptResult
ContentResult
FileContentResult
FileStreamResult
FilePathResult
Mention what is the importance of NonActionAttribute?
All public methods of a controller class are treated as the action method if you want to prevent this default method then you have to assign the public method with NonActionAttribute.