Interview Questions.

Question 1. Explain What Is Model-view-controller?

Answer :

MVC is a software architecture sample for developing web application. It is treated with the aid of three objects Model-View-Controller.

Question 2. Mention What Does Model-view-controller Represent In An Mvc Application?

Answer :

In an MVC version,
•Model– It represents the application data domain. In other words applications commercial enterprise common sense is contained in the version and is liable for retaining statistics
•View– It represents the user interface, with which the stop customers communicates. In brief all the user interface good judgment is contained within the VIEW
•Controller– It is the controller that solutions to consumer movements. Based at the person actions, the respective controller responds in the model and choose a view to render that display the person interface.  The person enter good judgment is contained with-in the controller

. NET Interview Questions
Question three. Explain In Which Assembly Is The Mvc Framework Is Defined?

Answer :

The MVC framework is defined in System.Web.Mvc.

Question 4. List Out Few Different Return Types Of A Controller Action Method?

Answer :

•View Result
•Javascript Result
•Redirect Result
•Json Result
•Content Result

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Question 5. Mention What Is The Difference Between Adding Routes, To A Web Form Application And An Mvc Application?

Answer :

To add routes to a webform utility, we will use MapPageRoute() technique of the RouteCollection class, in which including routes to an MVC software, you could use MapRoute() approach.

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Question 6. Mention What Are The Two Ways To Add Constraints To A Route?

Answer :

The two methods to feature constraints to a route is
•Use everyday expressions
•Use an object that implements IRouteConstraint Interface

Question 7. Mention What Is The Advantages Of Mvc?

Answer :

•MVC segregates your undertaking into a one-of-a-kind phase, and it will become easy for developers to work on.
•It is simple to edit or exchange some a part of your venture that makes task less development and renovation fee.
•MVC makes your mission extra systematic.

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Question 8. Mention What “beforfilter()”,“beforerender” And “afterfilter” Functions Do In Controller?

Answer :

•beforeFilter(): This function is run before each action inside the controller. It’s the proper location to test for an active consultation or inspect consumer permissions.
•beforeRender(): This characteristic is referred to as after controller action logic, however before the view is rendered. This function isn't often used, but can be required If you are calling render() manually before the give up of a given action.
•afterFilter(): This feature is known as after each controller action, and after rendering is executed. It is the final controller approach to run.

Question 9. Explain The Role Of Components Presentation, Abstraction And Control In Mvc?

Answer :

•Presentation: It is the visual representation of a selected abstraction within the utility
•Abstraction: It is the enterprise area capability inside the application
•Control: It is part that maintains consistency between the abstraction within the device and their presentation to the person further to communicating with other controls in the device

Microsoft Solutions Framework (MSF) Interview Questions
Question 10. Mention The Advantages And Disadvantages Of Mvc Model?

Answer :

Advantages:

It represents clear separation between enterprise logic and presentation good judgment
Each MVC item has different responsibilities
The improvement progresses in parallel
Easy to control and maintain
All instructions and object are independent of each other
Disadvantages:

The version pattern is little complicated
Inefficiency of statistics get entry to in view
With modern person interface, it's miles tough to use MVC
You want a couple of programmers for parallel development
Multiple technology understanding is needed
 

 

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Question 11. Explain The Role Of “actionfilters” In Mvc?

Answer :

In MVC “ ActionFilters” assist you to execute logic even as MVC motion is performed or its executing.

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Question 12. Explain What Are The Steps For The Execution Of An Mvc Project?

Answer :

The steps for the execution of an MVC mission consists of
•Receive first request for the utility
•Performs routing
•Creates MVC request handler
•Create Controller
•Execute Controller
•Invoke movement
•Execute Result

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Question 13. Explain What Is Routing? What Are The Three Segments For Routing Is Important?

Answer :

Routing helps you to decide a URL shape and map the URL with the Controller.
The three segments which can be essential for routing is
•ControllerName
•ActionMethodName
•Parameter

Question 14. Explain How Routing Is Done In Mvc Pattern?

Answer :

There is a collection of routes known as the RouteCollection, which consists of registered routes inside the application.The RegisterRoutes approach records the routes on this series.  A course defines a URL pattern and a handler to use if the request fits the sample. The first parameter to the MapRoute technique is the call of the route. The 2nd parameter will be the sample to which the URL matches.  The 0.33 parameter is probably the default values for the placeholders if they are no longer decided.

Question 15. Explain Using Hyperlink How You Can Navigate From One View To Other View?

Answer :

By the use of “ActionLink” technique as shown within the under code. The underneath code will make a simple URL which help to navigate to the “Home” controller and invoke the “GotoHome” action.
Collapse / Copy Code
<%= Html.ActionLink(“Home”, “Gotohome”) %>

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Question 16. Mention How Can Maintain Session In Mvc?

Answer :

Session can be maintained in MVC through 3 approaches tempdata, viewdata, and viewbag.

Question 17. Mention What Is The Difference Between Temp Data, View, And View Bag?

Answer :

•Temp statistics: It facilitates to preserve statistics whilst you shift from one controller to different controller.
•View statistics: It allows to keep statistics whilst you move from controller to view
•View Bag: It’s a dynamic wrapper round view statistics

Spring MVC Framework Interview Questions
Question 18. What Is Partial View In Mvc?

Answer :

Partial view in MVC renders a part of view content material. It is useful in reducing code duplication. In easy terms, partial view permits to render a view within the discern view.

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Question 19. Explain How You Can Implement Ajax In Mvc?

Answer :

In Ajax, MVC may be carried out in  approaches
•Ajax libraries
•Jquery

Question 20. Mention What Is The Difference Between “actionresult” And “viewresult”?

Answer :

“ActionResult” is an abstract class while “ViewResult” is derived from “AbstractResult” magnificence.  “ActionResult” has some of derived instructions like “JsonResult”, “FileStreamResult” and “ViewResult” .
“ActionResult” is pleasant if you are deriving one of a kind styles of view dynamically.

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Question 21. Explain How You Can Send The Result Back In Json Format In Mvc?

Answer :

In order to ship the result returned in JSON layout in MVC, you may use “JSONRESULT” elegance.

Question 22. Explain What Is The Difference Between View And Partial View?

Answer :

View :

It consists of the layout web page
Before any view is rendered, viewstart page is rendered
View would possibly have markup tags like body, html, head, title, meta and so forth.
View isn't light-weight as examine to Partial View
Partial View :

It does now not contain the format web page
Partial view does no longer verify for a viewstart.Cshtml. We cannot placed not unusual code for a partial view inside the viewStart.Cshtml.Web page
Partial view is designed particularly to render inside the view and simply because of that it does no longer consist any mark up
We can skip a ordinary view to the RenderPartial technique
Question 23. List Out The Types Of Result In Mvc?

Answer :

In MVC, there are twelve sorts of results in MVC where “ActionResult” magnificence is the primary elegance whilst the eleven are their sub-types
•ViewResult
•PartialViewResult
•EmptyResult
•RedirectResult
•RedirectToRouteResult
•JsonResult
•JavaScriptResult
•ContentResult
•FileContentResult
•FileStreamResult
•FilePathResult

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Question 24. Mention What Is The Importance Of Nonactionattribute?

Answer :

All public methods of a controller elegance are handled because the motion method in case you need to prevent this default technique then you need to assign the public technique with NonActionAttribute.

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Question 25. Mention What Is The Use Of The Default Route useful resource.Axd/*pathinfo?

Answer :

This default direction prevents request for a web aid report such as Webresource.Axd or ScriptResource.Axd from being surpassed to the controller.

Question 26. Mention The Order Of The Filters That Get Executed, If The Multiple Filters Are Implemented?

Answer :

The filter order might be like
•Authorization filters
•Action filters
•Response filters
•Exception filters

Question 27. Mention What Filters Are Executed In The End?

Answer :

In the cease “Exception Filters” are performed.

Microsoft Solutions Framework (MSF) Interview Questions
Question 28. Mention What Are The File Extensions For Razor Views?

Answer :

For razor perspectives the file extensions are
•.Cshtml: If C# is the programming language
•.Vbhtml: If VB is the programming language

Question 29. Mention What Are The Two Ways For Adding Constraints To A Route?

Answer :

Two methods for including constraints to direction is
•Using ordinary expressions
•Using an item that implements IRouteConstraint interface

Question 30. Mention Two Instances Where Routing Is Not Implemented Or Required?

Answer :

Two example in which routing isn't always required are
•When a bodily file is located that matches the URL sample
•When routing is disabled for a URL sample

Question 31. Mention What Are Main Benefits Of Using Mvc?

Answer :

There are two key benefits of the use of MVC
•As the code is moved in the back of a separate class document, you can use the code to a splendid volume
•As behind code is clearly moved to.NET magnificence, it is possible to automate UI trying out. This offers an possibility to automate guide testing and write unit exams.

Question 32. Name A Few Different Return Types Of A Controller Action Method?

Answer :

The following are just a few return styles of a controller movement approach. In widespread an motion method can go back an instance of a any class that derives from ActionResult class.
1. ViewResult
2. JavaScriptResult
3. RedirectResult
4. ContentResult
five. JsonResult

 

Question 33. Is Mvc Suitable For Both Windows And Web Application?

Answer :

MVC architecture is applicable for internet utility than windows. For window software MVP i.E. “Model view presenter”is extra relevant. If you are using WPF and SL MVVM is extra appropriate due to bindings.

Resource Description Framework (RDF) Interview Questions
Question 34. What Are The Benefits Of Using Mvc?

Answer :

There are two huge benefits of MVC:-Separation of issues is completed as we are shifting the code at the back of to a separate elegance file. By moving the bindingcode to a separate elegance report we are able to reuse the code to a top notch quantity.Automated UI testing is possible because now the at the back of code (UI interplay code) has moved to a easy.NET elegance.This gives us possibility to put in writing unit exams and automate guide testing

Question 35. How Can We Restrict Mvc Actions To Be Invoked Only By Get Or Post?

Answer :

We can decorate the MVC movement via “HttpGet” or “HttpPost” attribute to restrict the sort of HTTP calls. For instanceyou can see inside the underneath code snippet the “DisplayCustomer” movement can most effective be invoked via “HttpGet”. If we try tomake Http post on “DisplayCustomer” it'll throw an blunders.
[HttpGet]
public ViewResult DisplayCustomer(int identity)

Customer objCustomer = Customers[id];
go back View("DisplayCustomer",objCustomer);

Question 36. How Can We Maintain Session In Mvc?

Answer :

Sessions can be maintained in MVC with the aid of three methods tempdata ,viewdata and viewbag

Unittest Framework Interview Questions
Question 37. Can You Explain The Complete Flow Of Mvc?

Answer :

Below are the steps how control flows in MVC (Model, view and controller) architecture:-
•All quit consumer requests are first despatched to the controller.
•The controller depending at the request decides which version to load. The controller masses the version and attachesthe version with the ideal view.
•The very last view is then attached with the version information and despatched as a reaction to the quit person on the browser

Question 38. Where Is The Route Mapping Code Written?

Answer :

The course mapping code is written inside the “global.Asax” file.

Question 39. Can We Map Multiple Url’s To The Same Action?

Answer :

Yes , you may , you simply need to make two entries with extraordinary key names and specify the same controller and movement

Question forty. How Can We Navigate From One View To Other View Using Hyper-link?

Answer :

By the usage of “ActionLink” technique as proven within the beneath code. The below code will create a easy URL which help tonavigate to the “Home” controller and invoke the “GotoHome” action.
<%= Html.ActionLink("Home","Gotohome") %>

Spring MVC Framework Interview Questions