Top 50 ASP.NET MVC Interview Questions - From Beginners to Advanced

In your journey to master ASP.NET MVC you might have come across various hands on tutorials and you might be great in them but to be job ready you would also have to prepare for ASP.NET MVC interview questions.

To make your lives easier and to help you achieve what you are aiming for, i.e. to get job ready, we have created a detailed and comprehensive list of ASP.NET Core MVC interview questions and answers that will focus on each and every question and will explain you in detail about that topic and logic.

What is ASP.NET MVC?

MVC stands for Model-View-Controller and it's an architectural design pattern to create decoupled web applications. By implementing the MVC pattern, we decouple the user interface (view), the data (models) and the application logic (controller). This pattern helps to achieve separation of concerns.

MVC is divided into three main parts

1. Controller - User requests are routed to the controller. The controller receives the request from a user when the user performs an action or views a particular web page.
2. Model - The data for the application is handled by the Model. When the request comes to the controller, the controller collates the data (application logic) or manipulates the data. This data is stored in a model. The controller then decides which view to present to the user and uses this model and sends it to the view.
3. View - This is the presentation layer. It comprises of HTML, CSS and some C# code. The view also accepts the model and uses this data from the model to display to the web page to the user.

This segregation of code into Models, Views and Controllers gives us segregation. The MVC pattern makes our code maintainable, scalable and creates a collaborative environment where multiple developers can work on a certain piece of work.

What are the advantages of MVC architectural pattern?

As we established above, The biggest advantage that the MVC architectural pattern offers us is the separation of concerns. Let's see what other advantages does the MVC architecture gives us.

Separation of concern

The MVC pattern divides an application into three interconnected components i.e. the Model, Controller and the View. This separation helps code make more modular, maintainable and understandable to other developers.

Testability

Due to the nature of these independent components, testing the model, view and controller separately becomes way more easier as you are only testing one component at a time.

Code re-usability

Further to use the advantages of three separate components, ASP.NET MVC gives us code re-usability. As Models are separate to Views and controllers, one model can be used in multiple controller actions to carry data to the controllers. Similarly, views can be re-used by different controllers to present views to users.

Scalability

MVC provides a structure that scales well as applications grow. As new features are added, developers can extend existing controllers or models without affecting other parts of the application.

Makes code more maintainable

With the separation of concerns, maintaining and updating the application becomes easier. Changes to one component typically have minimal impact on other components, reducing the risk of unintended consequences.