Top 43 ASP NET Interview Questions 2023

You can use it to develop MVC applications to rapidly enhance the code that intermingles with the application’s data model. It can reduce the quantity of time for developing a standard data operation in the web application. If you are preparing for senior positions, you must practice the following MVC interview questions on scaffolding, error handling, and other vital topics. With the use of default route all the requests for the web resources file like WebResource.axd and ScriptResource.axd can be avoided from being passed to the MVC controller.

• The generated code, as a result, is a powerful code that runs in a .NET environment.
• The Action link can help navigate from one view to another using the hyperlink, which creates a simple URL and navigates to the “Home” controller.
• The following is the example of a Route Attribute in which routing is defined where the action method is defined.
• It can not be used for primitive or string values but only for reference.
• Attribute-based routing – to define this type of routing, we specify the Route attribute in the action method of the controller.
• We can implement validation in the MVC application with the help of validators defined in the System.ComponentModel.DataAnnotations namespace.
• Using asynchronous actions can increase the throughput of a system if you use such a pattern for I/O operations, but it won’t help with CPU-bound operations.

Salaries for .NET developers range between $87K and $154K with the median being $120K. The “RouteData” object is used to create the “RequestContext” object. V. The ASP.NET MVC is supported most of the feature of ASP.NET web form like authentication and authorization, roles, caching, session etc. Automated UI testing is possible because now the behind code has moved to a simple .NET class. This gives us opportunity to write unit tests and automate manual testing.

How can you ensure that Web API returns JSON data only?

One can also use the “CreateErrorResponse” method along with this one. TestAPi in Web API refers to a utility library that allows developers to create testing tools as well as automate tests for a .NET application. Using HttpResponseException –This exception class helps to return the HTTP status code specified in the exception Constructor. Web API is an important application programming interface that enables web services over a broad range of browsers and devices such as tablets, mobile phones, etc. It is of significant importance for its lightweight and simpler services and can be used as a standalone web service application.

You can create ASP.Net applications in most of the .Net compatible languages like Visual Basic, C#, etc. ASP.Net provides much better performance than scripting languages. To create reusable widgets child actions are used and this will be embedded into the parent views.

FAQs on MVC Interview Questions

The user input logic is contained with-in the controller. There are three options in Model View Controller for passing data from controller to view.

View– It represents the user interface with which end-users communicate. In short, all the user interface logic is contained within View. We can implement validation in the MVC application with the help of validators defined in the System.ComponentModel.DataAnnotations namespace. The different validators are DataType, Required, Range, and StringLength. ORM (object-relational mapping) framework is a framework that helps in reducing the amount of handwritten code in a web app.

What is an HTTP status code?

The generated mvc programmer, as a result, is a powerful code that runs in a .NET environment. After compilation, the languages do not remain a barrier and the code can call or use functions of various other languages too. When set to true, this property instructs the client application not to save the Cookie on the hard disk of the user at the end of the session. There can be multiple web config files in an application but only one machine config file. Web config file is specific to web application whereas Machine config file is specific to machine or server. On the other hand, the application object is used to store the information and access variables from any page in the application.