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Table of contents
1.
Introduction
2.
Top MVC Interview Questions
2.1.
1. What is MVC?
2.2.
2. Describe what does Model-View-Controller represent in an MVC application?
2.3.
3. Mention the assembly in which the MVC framework is defined.
2.4.
4. What are the different types of return types for the controller action function in MVC?
2.5.
5. What are the different phases involved in creating the request object?
2.6.
6. What are some of the advantages of adopting MVC?
2.7.
7. What are the different MVC components' functions?
2.8.
8. When you mention "partial view of MVC," what exactly do you mean?
2.9.
9. What is the best way to complete any MVC project? Describe the steps involved.
2.10.
10. What does the term "routing" mean in MVC?
2.11.
11. With three logical layers, what does the MVC Pattern mean?
2.12.
12. In MVC, how does the routing work?
2.13.
13. Explain the concepts of temp data, view, and viewbag in one sentence.
2.14.
14. What distinguishes ActionResult from ViewResult?
2.15.
2.16.
15.  What is Spring MVC, and how does it work?
2.17.
17. In MVC, what is TempData?
2.18.
18. In MVC, what is output caching?
2.19.
19. In MVC, which class will you use to return the result in JSON format?
2.20.
20. What is the use of ViewModel in MVC?
3.
Frequently Asked Questions
3.1.
What is the MVC framework's purpose?
3.2.
Do all frameworks use MVC?
3.3.
Is MVC a front-end or back-end framework?
3.4.
Is MVC exclusive to web applications?
3.5.
Is MVC used in.NET core?
4.
Conclusion 
Last Updated: Jun 12, 2024

MVC Interview Questions | Part 1

Author Pradeep Kumar
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Introduction

MVC (Model View Controller) is a software architecture or design model which is commonly used to develop applications with User Interfaces. It includes everything you will need to create a desktop or mobile app, as well as a modern web app.

We've compiled a list of the most common MVC interview questions and answers.

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Top MVC Interview Questions

1. What is MVC?

MVC(Model View Controller) is a web application development software architecture pattern. It contains three interconnected portions, model (responsible for handling data of the application), view ( the User Interface of the application), and controller (processes responsible for handling the input). 

2. Describe what does Model-View-Controller represent in an MVC application?

  • The Model contains the MVC applications' business logic and is in charge of data maintenance. In simple words, it is the data domain of the MVC application.
  • The View contains the logic for the User Interface with which the end-users interact. In other words, it is a way of displaying the entities (User interfaces) inside an MVC application.

The controller is the one who responds to the user's activities. The corresponding controller responds within the model based on the user activities and chooses a view to render that displays the user interface. The controller is where the user input logic is kept.

3. Mention the assembly in which the MVC framework is defined.

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

4. What are the different types of return types for the controller action function in MVC?

The different return types of controller action methods in MVC are as follows:

  • Content Result
  • JavaScript Result
  • JSON Result
  • Redirect Result
  • View Result

5. What are the different phases involved in creating the request object?

The following are the four steps involved in creating a request object:

  • Fill the Route
  • Fetch Route
  • Create a new request context
  • Create a new controller instance

6. What are some of the advantages of adopting MVC?

The following are some of the most prevalent MVC advantages:

  • Support for numerous views: Because the model and its view are separated, the user interface (UI) can implement multiple views of the same data simultaneously.
  • SEO-friendly development: The MVC platform may facilitate the development of SEO-friendly web pages or web applications.
  • Lightweight: MVC framework is lightweight since it does not employ View State, which reduces the needed bandwidth.
  • Rapid and parallel development: MVC allows for rapid and parallel development. This means that while constructing an application, one programmer will most likely work on the view while another works on the application's business logic.
  • More Control: ASP.NET MVC architecture gives you more control over HTML, CSS, and JavaScript than standard WebForms.

7. What are the different MVC components' functions?

The functions of the various MVC components are as follows:

  • Presentation: This component is in charge of the application's visual representation of a particular abstraction.
  • Control: This component ensures that the system's abstraction and how it is presented to the user are consistent and uniform. It is also in charge of establishing connections with the MVC system's other controls.
  • Abstraction: The business domain functionality of the application is handled by this component.

8. When you mention "partial view of MVC," what exactly do you mean?

A partial view is a section of HTML that is put into an existing document object model with care (DOM). Razor views, which are only partially visible, are commonly used to componentize them, making them easier to construct and update. The partial views can also be returned directly by controller methods.

9. What is the best way to complete any MVC project? Describe the steps involved.

The steps for completing an MVC project are as follows:

  • The application receives its first request. 
  • The routing is then carried out.
  • The MVC request handler is then built.
  • The controller is then constructed and executed.
  • The action is then started.
  • The outcomes are then put into action.

10. What does the term "routing" mean in MVC?

MVC routing can be characterized as a pattern-matching mechanism for mapping incoming browser requests to specific MVC controller actions.

11. With three logical layers, what does the MVC Pattern mean?

The MVC model defines web applications with three logic levels:

  • Model: The layer that deals with business logic
  • View:  The layer for the user interface
  • Controller: Controls the input

The Model is a program component that only deals with the application's data logic. Model objects access (and store) data from a database regularly. The View is the component of the application that handles data display. Although there are alternative, more involved techniques of constructing views, the most common method is to create views from the model data. As the name implies, the Controller is the part of the application that deals with user interaction.

Learn more, Power Apps Interview Questions

12. In MVC, how does the routing work?

The RouteCollection comprises a group of routes that are in charge of registering routes in the application. The RegisterRoutes function is used to keep track of the collection's routes. The routes define the URL patterns, and a handler is used to check if the request matches the pattern. There are three parameters in the MVC route. The first parameter determines the route's name. The second input specifies a pattern that the URL should match. The third argument is in charge of giving default placeholder values.


13. Explain the concepts of temp data, view, and viewbag in one sentence.

Temp data, View, and Viewbag can be summarised as follows:

  • Temp data: This is used to keep track of data when switching from one controller to another.
  • View data: When switching from a controller to a view inside an application, view data is utilized to keep track of the data.
  • View Bag: This is a dynamic wrapper for view data.

14. What distinguishes ActionResult from ViewResult?

The following are some common distinctions between ActionResult and ViewResult:

15.  What is Spring MVC, and how does it work?

Spring MVC, also known as Spring Web MVC, is a framework that includes a "Model View Controller" (MVC) architecture and ready-to-use components for constructing customizable and adaptable web applications. It is, in fact, a Java-based framework for creating web applications. The Model-View-Controller design method is used. This framework also incorporates all of the core Spring Framework's fundamental characteristics, such as dependency injection, lightweight, integration with other frameworks, inversion of control, etc. With the use of DispatcherServlet, Spring MVC provides a dignified solution for implementing MVC in Spring Framework.
16. In a few words, explain what you mean by separation of concerns.

Separation of Concerns is one of the essential features and benefits of using MVC, and ASP.NET supports it. The MVC framework enables a clear separation of responsibilities between the user interface (UI), data, and business logic in this scenario.

17. In MVC, what is TempData?

A dictionary object called TempData is used to store data for a limited period. This is the MVC's TempDataDictionary class, which works as the instance property of a Controller base class. TempData is capable of preserving data for HTTP requests.

18. In MVC, what is output caching?

A technique for enhancing the performance of an MVC application is output caching. Its purpose is to allow users to cache the data returned by the controller method so that the data used previously do not have to be created each time the controller function is invoked. Output caching offers advantages in that it reduces database server round trips, minimizes server round trips, and reduces network traffic.

19. In MVC, which class will you use to return the result in JSON format?

In order to return the result in JSON format in any MVC application, you must implement the "JSONRESULT" class.

20. What is the use of ViewModel in MVC?

ViewModel can be defined as a simple class with several features. It is used for tightly typed view binding. ViewModel is made up of different validation rules that define the properties of practicing data annotation.

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Frequently Asked Questions

What is the MVC framework's purpose?

Model–view–controller (MVC) is a software design pattern that divides related program functionality into three companion pieces and is often used for building user interfaces. This distinguishes internal information representations from how information is presented to and accepted by users.

Do all frameworks use MVC?

All frameworks do not follow the MVC pattern. Some frameworks, such as MVVM or MVP, may use a version of the MVC pattern.

Is MVC a front-end or back-end framework?

The database, the user, and the data processing components all have front and back ends in MVC. Separating software systems into front and back ends makes development easier and maintenance easier.

Is MVC exclusive to web applications?

It depends on how you use it if it is only for the web. It is merely a framework that should function on both platforms. iOS development, for example, follows the MVC pattern. However, if you are using WPF/Silverlight, you should consider MVVM instead of MVC.

Is MVC used in.NET core?

The ASP.NET Core MVC framework is a lightweight, open-source, and highly testable presentation framework explicitly designed for ASP.NET Core. ASP.NET Core MVC is a pattern-based framework for creating dynamic websites with a clear separation of concerns.

Conclusion 

This article contains all of the basic MVC interview questions for freshers and MVC interview questions and answers for experienced applicants. For more MVC interview questions, check out the second article here.

We hope you found solutions to this article's most often asked MVC Interview questions. The answers presented here are also beneficial in comprehending MVC fundamentals.

To ace your interviews, check out Top Linux Interview Questions and Typescript Interview Questions. Do upvote our blog to help other ninjas grow. 

Also read: Html interview questions

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