Asp Net Mvc Interview Questions And Answers
Commonly Asked Interview Questions and Answers for ASP.NET MVC
Asp Net Mvc Interview Questions And Answers
Asp Net Mvc stands for Active Server Pages .Net Model-View-Controller and is a popular open-source web development framework for creating dynamic and robust web applications. This framework follows the MVC architectural pattern, providing a clear separation of concerns between the presentation, business logic, and data access layers. Asp Net Mvc Interview Questions And Answers may include topics such as the advantages of using MVC, routing, Razor syntax, data validation, and security. Employers may also ask about your experience with Asp Net Mvc, your understanding of web development principles, and your problem-solving skills. It is important to familiarize yourself with the framework and its features before the interview and be prepared to showcase your knowledge and experience.
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1 - What is ASP.NET MVC?
ASP.NET MVC (Model View Controller) is an architectural pattern used for developing web applications using the .NET framework. It splits the application into three main components: Model, View, and Controller. This allows for better separation of concerns and facilitates easier maintenance and extensibility of the application.
2) What is the difference between ASP.NET Web Forms and ASP.NET MVC?
ASP.NET Web Forms is a more traditional approach to web development where the view and controller logic are combined into a single file. It uses server side controls and relies heavily on postback to communicate between the client and server. On the other hand, ASP.NET MVC separates the view and controller logic by using a front end framework like HTML, CSS, and JavaScript. It also uses a routing engine to handle client server communication, making it more lightweight and flexible.
3) What are the main components of ASP.NET MVC?
The main components of ASP.NET MVC are:
Model: This is responsible for maintaining the application data and business logic.
View: This is the user interface that displays the data to the user.
Controller: This acts as a mediator between the model and the view, handling user input, and updating the model accordingly.
4) What are the advantages of using ASP.NET MVC?
Some of the advantages of using ASP.NET MVC are:
It allows for better separation of concerns, making the application easier to maintain and extend.
It provides better control over the HTML, CSS, and JavaScript, allowing for more flexible UI design.
It is lightweight and can handle high traffic and load.
With built in HTML helpers, security features, and testability, it provides a robust framework for web development.
5) What is the role of routing in ASP.NET MVC?
Routing in ASP.NET MVC is responsible for mapping incoming requests to appropriate actions. It uses a predefined pattern to match the URL to specific controller and action methods, allowing for a cleaner and more SEO friendly URL structure.
6) What is a Controller in ASP.NET MVC?
A controller is a class responsible for handling user requests and updating the model accordingly. It contains action methods that are invoked when a specific request is made. The controller's role is to receive input from the user, perform any necessary logic, and pass the updated model to the view for rendering.
7) What is a View in ASP.NET MVC?
A view is responsible for rendering the user interface and displaying the data to the user. It is generally a combination of HTML, CSS, and JavaScript and can use server side code to display dynamic data. Views are loosely coupled with the controller, allowing for more flexibility in design and presentation.
8) What is a Model in ASP.NET MVC?
A model represents the data and business logic of the application. It can include classes, interfaces, and methods that manipulate data and perform validation. Models are responsible for retrieving and updating data from the database and passing it back to the controller for further processing.
9) How are errors handled in ASP.NET MVC?
Errors in ASP.NET MVC are handled using two main approaches: exception handling and validation. Exceptions are caught using try catch blocks and can be handled using custom error pages or logging mechanisms. Validation is done using data annotations, which can help catch errors before they occur and provide a more user friendly error message.
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10) What is a Filter in ASP.NET MVC?
Filters in ASP.NET MVC are used to implement cross cutting concerns such as logging, validation, and authentication. They run before or after the execution of controller actions and can be applied globally or on specific actions and controllers.
11) How does ASP.NET MVC handle authentication and authorization?
ASP.NET MVC has built in support for authentication and authorization using ASP.NET Identity. This allows developers to easily add authentication and role based authorization features to their applications, such as login and user registration.
12) What is the use of bundles in ASP.NET MVC?
Bundles in ASP.NET MVC are used to combine multiple scripts and stylesheets into a single file, reducing the number of HTTP requests and improving page load time. Bundles can also be minified, making the file size smaller and more optimized for production.
13) How is data passed between the Controller and View in ASP.NET MVC?
Data can be passed between the Controller and View in ASP.NET MVC using ViewBag, ViewData, and TempData. ViewBag and ViewData are used to pass data from the controller to the view, while TempData is used to pass data between subsequent requests.
14) How can you handle multiple submit buttons in a form in ASP.NET MVC?
Multiple submit buttons can be handled in ASP.NET MVC using the name attribute. Each submit button should have a unique name, and the controller can use this name to determine which button was clicked and take the appropriate action.
15) What is a NuGet package in ASP.NET MVC?
NuGet is a package management system for .NET and is used in ASP.NET MVC to easily add libraries and dependencies to a project. NuGet packages can be downloaded and managed directly from Visual Studio. They help in maintaining consistent versions of libraries and reduce the effort of manually installing and updating dependencies.
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