Itpreneur the Best IT training institute in Pune, believe in sculpting your future by empowering you with the skills and knowledge required to excel in the tech industry. Looking to get hired as a .NET Full Stack Developer? Our goal, at Itpreneur, is to make you outstanding. Whether a fresher or an experienced developer, the interview process always comes with difficulties. In this blog, we have made a list of the most important and frequently asked .NET Full Stack Developer interview questions with some key insights and answers for our readers. Join ITPreneur now and let us take you to a successful ride in technology.

Focus on What Matters: The Top 10 Essential Questions

While preparing for a .NET Full Stack Developers’ interview, some questions are more important than others. We identified the top 10 questions asked by companies in order to make an assessment of a candidate on .NET technologies and full-stack development. Master these questions to enhance your preparation and impress any interviewer.

Below, we have identified the most critical questions you need to be prepared to address. These are critical questions that, often poised across different companies, will help ascertain your knowledge in .NET technologies and full stack development principles. Mastering these will significantly enhance the chances of impressing any interviewer for a job.

Q1) What are the different methods for storing configuration settings in ASP.NET Core?

Configuration options in ASP.NET Core are available for setting and configuration through different sources by configuration providers. Among the principal techniques of saving configuration settings, configurations can be stored in settings files, like appsettings.json, in a structured format. Environment variables: Configure settings by putting configurations in the environment in which your application is running. Azure Key Vault: Store sensitive information securely in the cloud. Azure App Configuration: Manage configurations centrally in Azure.

It also supports command-line arguments, which are quite useful for directly setting settings during the application’s startup process. Custom providers can be created or installed to satisfy particular needs in configuration. Configuration from directory files can also be loaded from specific directories. It may also store and gain direct access to configurations right from memory as an in-memory .NET object. All these methods provide flexibility in the handling of application settings based on need and deployment environment.

Q2) WHAT IS AN EXE AND DLL ?

EXE is a stand alone application program which is executed on its own. while DLL’s better known as Dynamic link Libraries are device files that are accessed by other devices. As previously noted DLL does not run in its own. This is because DLL is a dynamic structure. it interacts with other programs only if that program is running.

Q3) WHAT IS DIFFERENCE BETWEEN INT AND INT 32? 

Int32 and int are the same thing, both of them allow us to declare a 32 bit integer. int may be considered as alias to Int32. When declaring an integer in a c# program most of users prefer to use int instead of Int32. In case we declare an integer with int or Int32, the actions performed do not differ.

Q4) What is Middleware in ASP.NET Core?

This is the software that can be fitted into any pipeline of an application to perform tasks such as processing of requests and even responses. Each component: Decides to route the request ON or skips it to the next component in the pipeline. Can do some work before and after the next component of the pipeline—and also work in parallel with it.

Q5) What is the request Delegate?

The request delegates handle each HTTP request. The request delegates: The request delegates are created by the above-mentioned extension methods, named Run, Map and Use. An individual request delegate may be described in-line as a local function — in-line middleware — or it can be described in a class. 

Q6) How to handle exceptions in middleware?

This exception-handling middleware retries the request with the original HTTP method. Error handler endpoint is only for the HTTP methods for which it is designed; otherwise, it will not execute. Now, take the example that an MVC controller action with attribute [HttpGet] will only execute at the front if it’s accessed by a GET request only.

Q7) What is the difference between string and string in c# ?

In C#, “string” and “String” are the same thing. “string” is a shorter way of writing “System.String”, and they both work in exactly the same way in your code.

string is a keyword and used frequently for declaration of a variable. Whereas System. String is a class used for accessing string static methods for example String. Format(), String. Compare() etc.

You can write strings straight in your program; there is no need to write Using System at the beginning of the program, while using System.String, those are the ones imported from the System namespace.

Long map to System as length map to system. Int64, int corresponds to Extended. Int32 and short map to System The above diagram shows the various reusables that can be used in Windows PowerShell programming and how they map to the .NET Framework types. Int16; the mapping of the string to System. 

Q8)How does the ASP.NET core serve static files?

Static files—things like images, CSS, and JavaScript—are stored in a root folder called wwwroot in a standard ASP.NET Core application. Files in this folder are served directly.

It knows to look in the wwwroot folder, when the application is running, for these files and serve them to users. By default, the application is set up only to serve files from this folder; this helps keep things organized and secure. If you wanted to serve static files from another location, you would have to configure that in the application settings.

Also, using the default wwwroot folder, makes the setup easier and places all your static files in a common location that can be referenced and run by other projects.

Q9) Can ASP.NET core applications work with .NET 4.X Framework?

No, ASP.NET Core can’t run on the .NET Framework 4.x. It’s built to run on top of .NET Core or .NET 5 and later. These are different from the .NET Framework.

.NET Framework is for Windows only; .NET Core and .NET 5+ are available for Windows, macOS, and Linux. Since ASP.NET Core is targeting to make use of the feature of the new frameworks, then it will not work on the old .NET Framework.

The older ASP.NET would be used for web applications that need to run on the .NET Framework. For new projects or to use the latest features and cross-platform capabilities, you will use ASP.NET Core on .NET Core or .NET 5+. 

Q10) HOW DOES THE .NET WORKFRAME WORK ?

NET Framework is a technical framework that enables programmers to develop and deploy Windows applications and web services. It provides the running environment, offering compatibility with many languages related to it, such as C# and F#, and visual grounds. undefined NET Framework consists of the Common Language Runtime, managing code features during execution and providing low-level services like memory management, threading, and exceptions.

Conclusion

Preparation for the .NET Full Stack Developer interview could be the most important thing in career growth. Having the right kind of preparation and knowledge at your fingertips will enhance your confidence in acing these interviews. We at ITPreneur take pride in your success. Log in to our website to know more about resources and support services.

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