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Last Updated: Jun 12, 2024

MVC Interview Questions | Part 2

Author Pradeep Kumar
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Introduction

MVC (Model View Controller) is a software architecture, or design model often used to create user interface applications. It comes with everything you will need to build a desktop or mobile app and a modern online application.

This article is the second article on MVC Interview questions. Check out the first article here.

Top MVC Interview Questions

1. What are the Filters, and how do they work?

Sometimes we want to run some logic before or after the action method is executed. For this type of circumstance, we can use Action Filter. Filters define the logic that runs before or after the action method is invoked. Action Filters are properties that can be applied to action methods. The types of MVC action filters are as follows:

  • Authorization filter
  • Action filter
  • Result filter
  • Exception filter
     

2. Could you describe the MVC page life cycle?

The page life cycle is defined by the processes listed below.

  • Initialization of the app
  • Routing
  • Creates and runs the controller.
  • Find and activate the controller action.
  • Create and render the view.
     

3. What is Entity Framework's Database First technique in MVC?

The Database First Approach to the Entity Data Model is an alternative or substitute for the Code First and Model First methodologies. The Entity Data Model renders model codes (classes, properties, DbContext, etc.) from the project's database, and that class serves as a link between the database and the controller.

Check out Entity Framework Interview Questions to know more about it.
 

4. What do you mean when you say MVC Scaffolding?

Scaffolding is an ASP.NET Web application code generation framework. For MVC and Web API projects, Visual Studio comes with pre-installed code generators. When you wish to add code that interacts with data models quickly, you add scaffolding to your project. Scaffolding can help you save time while developing standard data operations for your project.

Page templates, field page templates, entity page templates, and filter templates are all included. Scaffold templates are templates that allow you to create a data-driven website easily.

 

5. What are the differences between GET and POST action types?

Get Action Type: The GET action type is used to request information from a specific resource. We pass the URL with all GET requests, which is required; nevertheless, it can take on the following overloads.

POST Action type: The POST method is used to send data to a specified resource for processing. All POST requests include the URL, which is required, as well as the data. It can, however, handle the following overloads.

 

6. Explain the Razor concept in ASP.NET MVC.

The concept of "view engines" has always been supported by ASP.NET MVC, which are pluggable modules that implement various template syntax options. ASP.NET MVC employs the same.aspx/.ascx/. master file templates as ASP.NET WebForms as its "default" view engine. Spart and Nhaml are two more prominent ASP.NET MVC view engines. MVC 3 introduced Razor, a new view-engine.

 

7. In MVC, how is View Data different from View Bag?

 

8. Mention the Area Benefits in MVC.

The following are the advantages of Area in MVC:

  • It helps us to segregate models, views, and controllers into different functional portions of the program, such as administration, billing, and customer service, among other things.
  • It is simple to connect to other areas that have been built by others.
  • It is also simple to unit test.
     

9. Mention the two methods for putting constraints on a route.

There are two ways to apply constraints to the route:

  • Making use of regular expressions
  • Using a route constraint object that implements the IRouteConstraint interface
     

10. Give two examples of when routing is not used or is not required.

The following are two situations in which routing is not required:

  • When an actual file matching the URL pattern is discovered
  • When a URL pattern's routing is disabled
     

11. Explain how Ajax may be used in MVC.

Ajax can be used in MVC in two different ways: Ajax libraries and Jquery.
 

12. What is WebAPI, and how does it work?

The most widely used protocol is HTTP. For many years, the browser was the most popular client for accessing data accessible via HTTP. However, as time went on, the clientele became more diverse. We had requested that data be consumed over HTTP by clients such as mobile, JavaScript, and Windows programs.

REST was presented as a solution for fulfilling a wide range of clients. WebAPI is a technology that allows you to expose data over HTTP while adhering to the REST standards.
 

13. In MVC, how do you use Form authentication?

The process of providing user access to a service by authenticating his or her identification using credentials such as an email address and password or a username and password is known as authentication. It guarantees that the correct user has been authenticated or logged in for a particular service and that the relevant service has been provided to the user under their role.
 

14. Could you please explain the terms RenderBody and RenderPage in MVC?

In web forms, RenderBody is similar to ContentPlaceHolder. This will appear on the layout page and render the child pages/views. There will be only one RenderBody() method on the Layout page. RenderPage exists on the Layout page, and several RenderPage() can exist on the Layout page.
 

15. Which is more appropriate, Razor or ASPX?

According to Microsoft, Razor is recommended because it is lightweight and has straightforward syntax.
 

16. What is a glimpse?

Glimpse is a NuGet package that aids in discovering performance, debugging, and diagnostic information. Glimpse can assist you in obtaining information about timelines, model binding, routes, and the environment, among other things.
 

17. Why is MVC introducing minification and bundling?

MVC now includes two additional techniques, bundling, and minification, whose primary aim is to accelerate request load time. It shortens the load time by lowering the number of requests sent to the server and the amount of the requested assets (JavaScript and CSS).
 

18. What is ASP.NET MVC?

The word ASP.NET MVC refers to a lightweight web application framework with a high level of testability. In its application, ASP.NET MVC supports three distinct components. The ModelView, and Controller are the three components.
 

19. What is the importance of NonActionAttribute?

The action method is one of the numerous public methods associated with the controller class. To prevent the default method, you must assign NonActionAttribute to its public method.
 

20. What is scaffolding in MVC?

Scaffolding is an ASP.NET code-generation framework used in online applications. Scaffolding is used to develop MVC applications when anyone wishes to quickly improve the code that interacts with the application's data model. Scaffolding can also reduce the time required to develop a standard data operation in an application.

Also See, jenkins interview questions

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Frequently Asked Questions

In MVC, which design pattern is used?

The strategy design is used by the view and the controller in the MVC design pattern, while the observer design is used to synchronize the view and the model. As a result, we can call MVC a compound pattern.

 

Is MVC appropriate for both Windows and Web apps? 

The MVC design is better suited for a web application than it is for a Windows application. MVP, or "Model View Presenter," is better appropriate for Windows applications.

 

Is MVC considered a three-tier architecture?

ModelView, and Controller are the three components of the MVC architecture, which divides the application into three parts. The user interacts with the controller through the view in the MVC design. A triangular architecture is MVCMVC does not take the place of a three-layer design.

 

What is the main distinction between MVC and MVVM?

In MVC, the controller is the application's entry point, whereas, in MVVM, the view is the application's entry point. The MVC Model component may be tested independently from the user, but MVVM makes unit testing simple, and the code is event-driven.

Conclusion 

This post includes all advanced MVC interview questions for freshers as well as MVC interview questions and answers for experienced applicants.

We hope you find answers to the most often requested MVC Interview questions in this article. The solutions provided here are also useful in understanding MVC concepts.

To ace your interviews, check out Top Linux Interview Questions and Typescript Interview Questions and Selenium Interview Questions

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