Introduction to ASP .NET Interview Questions

ASP .NET has 10.8 % of the absolute server-side Web Application Framework (WAF) market space. The reason for the popularity of ASP .NET is because of its pivot shift towards remaining open source.

Backed by Microsoft, ASP .NET has grown to become one of the most notable options for web programmers to make dynamic websites, web applications, along with XML web services. The latest updates have differentiated business logic with the design. It assisted programmers and also designers work effectively on the system without the inconvenience.

ASP .NET is currently open-source on Github and looked after by Microsoft Team also as .NET Community. Microsoft even accepts vital and important updates from the open-source community to make ASP.NET more effective.

There is a misconception that ASP.NET can merely handle Windows architecture, however, it’s far from the reality. ASP.NET is Linux compatible. Microsoft has linked up with Red Hat to develop .NET Core to incorporate it effortlessly directly into Red Hat Enterprise Linux (RHEL).

As a result of its increasing demand in India, China, and the United States, together with the Arabian Peninsula, ASP .NET is among the exceptional career potential. Hence having ASP.NET development proficiency in your arsenal is a great choice for your career. In this ASP .NET Interview Questions Blog, we are going to see some ASP .NET Interview Questions and how to tackle these ASP .NET Interview Questions confidently. So let’s wait no more and see some ASP .NET Interview Questions for both freshers and developers.

ASP .NET Interview Questions for Beginners/Freshers

These are the ASP .NET interview questions for freshers. The asp.net interview questions for freshers are generally asked by interviewers to test their fundamentals. In these ASP .NET Interview Questions, we’ll be talking about asp.net mvc interview questions and also asp.net core interview questions basics that can be asked to a candidate.

What is ASP?

ASP means Active Server Pages. It is also referred to as classic ASP. It is a server-side technology offered by Microsoft that is used to develop user-friendly and dynamic web pages. It employs distinct scripting languages to produce dynamic web pages that can easily be operated on any kind of browser. 

This is among the most basic ASP .NET Interview Questions.

What is ASP .NET?

ASP .NET (Active Server Pages .NET) is a progressive latest programming framework that empowers the rapid enhancement of effective web applications and administrations. It’s an element of the Microsoft .NET Platform, it provides the simplest and most convenient approach to building, deploying, and then running web applications that can concentrate on any browser or device. ASP .NET is developed on the CLR(Common Language Runtime) which makes it possible for the programmers to carry out its code using any .NET language(C#, VB, etc.). It is particularly created to function with HTTP and for web developers for creating dynamic web pages, web apps, and sites, along with web services since it offers a great integration of HTML, CSS, along with JavaScript.

.NET Framework can be used to produce a wide range of services and applications such as Windows, Web, Console, etc. But ASP.NET is simply employed to make web applications and also web services. That is precisely why we termed ASP.NET to be a subset of the .NET Framework.

The interviewer could ask you these ASP .NET Interview Questions following the above question.

What are the advantages of ASP.NET?

Here are some advantages of ASP .NET:

• Separation of Code from HTML

For making a clean sweep, with ASP.NET you have the capability to fully sort layout and business logic. This tends to make it a lot easier for teams of designers and programmers to collaborate productively.

• Support for compiled languages

Developers can make use of VB.NET and access elements including strong typing and object-oriented programming. Making use of compiled languages also signifies that ASP.NET pages don’t endure the performance penalties linked to interpreted code. ASP.NET pages are precompiled to byte-code in addition to Just In time (JIT) compiled when initially requested. Subsequent requests are directed to the completely compiled code, which is cached until the source changes.

• Make use of services offered by the .NET Framework

The .NET Framework offers class libraries that could be used by your application. Some of the crucial classes aid you with input/output, access to operating system services, data access, or perhaps debugging.

• Graphical Development Environment

Visual Studio.NET offers an incredibly rich development environment for web developers. You can drag and also drop controls and set properties the manner in which you do in Visual Basic 6. Plus you’ve total IntelliSense assistance, not just for your code but also for XML and HTML.

• State management

To relate to the issues discussed earlier, ASP.NET offers solutions for session and application state management. The state information can, for instance, be kept in memory or stashed in a database. It can easily be shared throughout web farms, and state info could be recovered, even when the server fails or the connectivity breaks down.

• Update files while the server is running

Components of your application could be updated while the server is online and clients are linked. The framework is going to use the new files the moment they’re copied to the application program. Deleted or old files that are still being used are stored in memory till the clients have completed.

• XML-Based Configuration Files

Configuration settings in ASP.NET are kept in XML files that you can quickly read and edit. You can additionally conveniently copy these to the next server, together with the various other files that constitute your application.

The interviewer can ask you these ASP .NET Interview Questions to test your knowledge of ASP .NET advantages

Difference between the ASP.NET and ASP

The major distinction between ASP.Net and ASP is the fact that ASP is interpreted, while ASP.Net is compiled. ASP makes use of VBScript, as a result when the ASP page is carried out, it is interpreted. On the alternative,  ASP.Net utilizes.NET languages such as C# and VB.NET, which are compiled to Microsoft intermediate language.

This is among the most asked ASP .NET Interview Questions. Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of the differences between the two.

What are the features of ASP.NET?

1. It employs C# along with VB.NET languages to develop the website.
2. It gives way for us to separate the HTML layout with server-side code.
3. It enables us to create the same class name qualifying within a distinct namespace.
4. ASP.NET pages are compiled, not interpreted.
5. ASP.NET is a request processing engine. It takes a new request and moves it by its internal pipeline to an endpoint wherein a developer can connect code to process that request.

 Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of the features of ASP .NET.

What is a web application?

A Web application is a software that people can have access to by way of a web browser for exampl
e Firefox or Chrome. The browser makes an HTTP request for a certain URL for the web application. The web application server intercepts and also processes the request to create a dynamic HTML response delivered to the end-user. Some examples of well-known web applications include StackOverflow, Google, Reddit, etc. A web application is distinct from a regular website. 

A website is static. When you check out the website, it returns an HTML page without having done any processing to create the contents of that HTML page. You are going to see the same page in case you reload the web browser. In comparison, a web application may return a completely different response every time you visit.

For instance, let us say you ask a question on Stack Overflow. At first, you are going to see just your question when you check out the URL. Nevertheless, if a different user answers your question, the browser will show that answer on your subsequent visit to the exact same URL. A web application comprises several different layers. 

The conventional case in point is a three-layered architecture made up of presentation, business, and data layers. For instance, the browser (presentation) talks to the application server, which typically communicates to the database server to fetch the requested information. This is among the most asked ASP .NET Interview Questions. Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of web applications. The following figure illustrates a standard Web application architecture with typical elements grouped by distinct aspects of concern. 

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Web application framework and its Benefits

Understanding how to establish a modern-day web application could be daunting. The majority of the web applications have a common range of features such as:

• Create a dynamic response that corresponds to an HTTP request.
• Enable users to log directly into the application and deal with their data.
• Store the information in the database.
• Manage database connections along with transactions.
• Route URLs to proper methods.
• Supporting sessions, cookies, in addition to end-user authorization.
• Format output (e.g. HTML, XML, JSON), and strengthen security.

Frameworks assist developers to create, preserve and scale apps. They offer tools and libraries that streamline the above recurring tasks, getting rid of a great deal of needless sophistication. Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of web application frameworks.

What is a web server?

The term web server can relate to both hardware or perhaps software, operating together or separately. On the hardware aspect, a web server is a computer with considerably more processing power and memory that stores the application’s back-end code and fixed assets including JavaScript and images, CSS, and HTML files. This specific computer system is connected to the internet plus it allows data flow between connected devices. Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of web servers.

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On the software side, a web server is a program that accepts HTTP requests from the clients, for example, a web browser, processes the request, and also returns a response. The response could be static, i.e. image/text, or perhaps dynamic, i.e. calculated total of the shopping cart. Famous examples of web servers consist of Apache, Nginx, and IIS.

What is IIS?

IIS stands for Internet Information Services. It is a powerful web server created by Microsoft. IIS could additionally serve as a load balancer to disperse incoming HTTP requests to distinct application servers to enable high dependability and scalability.

It can furthermore serve as a reverse proxy, i.e. take a client’s request, forward it to an application server, and also return the client’s response. A reverse proxy enhances the security, dependability, and efficiency of your application. A limitation of IIS is the fact that it just runs on Windows. Nevertheless, it is incredibly configurable. You can configure it to match your application’s special preferences. Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of IIS.

What is the usage of IIS?

Below are the primary uses of IIS:

1. IIS is used to make your computer operate as a Web server and gives the features to create and also deploy Web applications on the server.
2. IIS handles the request and also the response cycle on the webserver.
3. IIS also offers the services of FrontPage and SMTP server extensions.
4. The SMTP is used to send emails and make use of FrontPage server extensions to obtain the dynamic features of IIS, like form handler. 

This is among the most asked ASP .NET Interview Questions. Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of IIS uses.

ASP .NET Interview Questions for Intermediate

These are the asp.net interview questions for 5 years experience or more developers. The asp.net interview questions for freshers are much easier to answer in comparison to asp.net interview questions for 5 years experience developers. In thes ASP .NET Interview Questions, we will discuss asp.net mvc interview questions along with asp.net core interview questions. So let’s see asp.net interview questions for 5 years experience developers.

Explain how HTTP protocol works?

HTTP is an application-layer protocol used for transmitting hypermedia docs, like HTML. It manages interaction between web browsers and web servers. HTTP uses a classical client-server model. A client, for example a web browser, opens a connection to generate a request, then waits till it obtains a response from the server.

HTTP is a protocol that enables the fetching of resources, for example, HTML documents. It’s the cornerstone of any information exchange on the web, and also it is a client-server protocol, that means requests are initiated through the recipient, typically the web browser. Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of HTTP Protocol working.

What is the MVC pattern?

The Model-View-Controller (MVC) is an architectural pattern that separates an application in 3 major logical components: the model, the view, and the controller. It is diverse to note that this pattern is not related to the layered pattern we observed previously. MVC pattern functions on the software side, and the layered pattern dictates where and how we place our database and application servers.

In an application that uses the MVC pattern, each and every element has its role very well specified. 

For instance, model classes just carry the information and the business logic. They do not cope with HTTP requests. Views merely display information. The controllers handle and respond to user input and determine which model to pass to which view. This is referred to as the separation of responsibility. It makes an application rather simple to create and preserve over time as it expands in complexity.

However Model-View-Controller is among the oldest and most prominent patterns, alternative patterns have emerged through the years. Some well-known patterns consist of MVVM (Model-View-ViewModel), MVP (Model-View-Presenter), MVA (Model-View-Adapter). This among the most asked ASP .NET Interview Questions. Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of MVC Pattern. Interviewers can also ask other asp.net m
vc interview questions as well.

What is Common Language Runtime (CLR)

CLR is the basic and Virtual Machine element of the .NET Framework. It is the run-time setting in the .NET Framework that runs the codes plus it helps in carrying out the development process much easier by offering several services for example remoting, thread managing, type-safety, memory management, robustness, etc.

Generally, it is in charge of dealing with the execution of .NET programs no matter any .NET programming language. It also helps in the handling of code, as code that targets the runtime is referred to as the Managed Code, and code that does not target runtime is referred to as Unmanaged code. Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of CLR.

ASP.NET MVC vs ASP.NET Web API

• ASP.Net MVC is used to develop web applications that return the view and data but ASP.Net Web API is used to create every HTTP service in a basic and simple manner that returns just info, not view. 
• Web API makes it possible to construct REST-ful services over the .NET Framework, and it furthermore supports content negotiation, self-facilitating which is not in MVC. 
• Web API in addition deals with returning info, especially design as JSON, XML, or some other reliant on the Accept header in the solicitation, and you do not worry over that. MVC just returns the info in JSON design using Json Result.

Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of MVC and Web API.

ASP.NET Core vs ASP.NET

1. Cross-Platform: 

The primary edge of ASP.NET Core is that it is not connected to a Windows OS, just like the legacy ASP.NET framework. You can create and run production-ready ASP.NET Core apps on Linux or a Mac. Deciding on an open-source operating system such as Linux leads to substantial cost savings since you do not need to spend on Windows licenses.

1. High Performance: 

It is furthermore created from scratch, trying to keep performance in mind. It is currently among the fastest web application frameworks.

1. Open Source: 

Finally, it is open-source and actively contributed by a large number of developers around the globe. All of the source code is hosted on GitHub for any individual to check out, change and add back. It has led to considerable goodwill and also loyalty for Microsoft, notwithstanding the patches and bug fixes in addition to enhancements included to the framework by contributors all over the world.

1. New Technologies: 

With ASP.NET Core, you can create apps utilizing new technologies including Razor Pages along with Blazor, in addition to the conventional Model-View-Controller approach.

This among the most asked ASP .NET Interview Questions. Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of benefits of ASP .NET Core. Along with this interviewer can also ask other asp.net core interview questions as well.

What is the difference between the GET method () and POST method ()?

S No.	get method( )	post method( )
1.	Data is affixed to the URL.	Data is not affixed to the URL.
2.	Data is not secured.	Data is secured.
3.	This approach allows for speedier data transfer.	The transfer of data is rather sluggish.
4.	Single call system.	Two-call system.
5.	There is a limit on how much data may be transferred.	It is possible to send a significant volume of data.
6.	Many browsers use this approach by default.	It isn’t the default setting. It should be stated plainly.

Interviewers can ask you these ASP .NET Interview Questions to test your knowledge of the differences between get method() and post method().

Conclusion of ASP .NET Interview Questions

In this blog on ASP .NET Interview Questions, we learned about the legacy ASP.NET framework together with its modern substitute, that’s ASP.NET Core. The post explored an extensive range of advanced and basic ASP .NET Interview Questions that an interviewer might ask in a job interview for a junior/intermediate developer job. We believe it will help for your next job interview! You can also checkout our other blogs like Recursion in Data Structure, Data Mining Algorithm, Supply Chain Management Interview Questions and many more here.

Frequently Asked Question’s

1. What is the difference between asp .net and .NET Core?

asp .net	asp .net CORE
Build for Windows.	Build for Windows, Mac and Linux.
Performs nicely.	Higher performances as compared to asp .net 4x.
It operates on .Net Framework or often termed as full .Net Framework.	It operates on .Net Core and Full.Net Framework.
asp .net Supports WebForm, asp .net MVC in addition to the asp .net WebAPI.	asp .net Core doesn’t support WebForm. It supports MVC, Web API in addition to the asp .net Web pages initially included in .Net Core 2.0.
asp .net made use of the only IIS with dependency on System.web.dll.	asp .net Core doesn’t depend on System.web.dll and therefore the IIS.
Support C# VB in addition to numerous other languages supports WCF, WF and WPF.	Support just C#, F# language. VB support includes a brief time and no support for WCF, WF and WPF but support for WCF client libraries are readily available.
asp .net MVC applications included Web.config, Global.asax, Application Start.	Core didn’t support Global.asax and Web.config files. It is supporting appsettings.json.
All key versions supported.	Support Core through Visual Studio 2015 update three and present version VS 2017.
Need to re compile right after the code change.	Core Browser refresh is going to compile and carry out the code with no requirement for re compiling.

Let’s move to the next FAQ of ASP .NET Interview Questions.

2. Why asp .net is used?

1. asp .net minimizes each of the problems that arise while creating a web application such as speed, cost, and language.
2. asp .net offers numerous development modes, and that help to develop applications in a better and easy way.
3. asp .net functions on an HTTP protocol and requires HTTP commands.
4. asp .net provides a platform that enables writing code in a text editor application and Visual Studio .NET.
5. In case you’re creating an application, asp .net might be the greatest option as it’s faster and more effective compared to some other systems.

Let’s move on to the next FAQ for ASP .NET Interview Questions

3. Is asp .net and .NET same?

It is usually misunderstood that asp .net and .NET are exactly the same. However, a programmer working on these will most certainly understand that they are not the same. .NET is a software framework or perhaps infrastructure which Microsoft created. asp .net, on the contrary, is a web application that is used to develop a variety of applications. This is the fundamental distinction between the  asp .net and .NET. Let’s move on to the next FAQ for ASP .NET Interview Questions.

4. Should I learn .NET or .NET Core?

In terms of the modern-day Web Development is concerned, not having a doubt .NET Core ought to be your pick over .NET Framework. The most important question is what part of the framework you need to get started to learn is dependent on the type of web app you are deciding to develop.

While there is still a wide range of web apps operating on .NET Framework that supports real enterprise demands and also achieves success so to speak, .NET Core is undoubtedly the way where the job marketplace is shifting. Without a doubt, there’ll be a lot of careers that list .NET Framework as a prerequisite, but almost certainly that’d be due to the maintenance of pre-existing apps, not creating new ones. Let’s move on to the next FAQ for ASP .NET Interview Questions

5. Is asp .net easy?

asp .net is a low-cost and high-speed programming language that is commonly used to develop applications and websites. It’s quite simple to learn and calls for minimal resources and setup. Furthermore, it’s a frequently used and incredibly popular programming language. However, there are great opportunities readily available for .NET programmers worldwide; thus, it is a really good choice for newbie programmers to study. Let’s move on to the next FAQ for ASP .NET Interview Questions

6. What is .NET standard?

.Net Standard is a specification that determines what the Base Class Libraries of various .Net platforms must put into action to unify the Base Class Libraries of distinct .Net Platforms. At this point, the Platform signifies full .NetFramework, Silverlight, Xamarin,.Net Core, Xbox, etc. And this also allows code sharing between applications that operate on these various platforms. For instance, a component or a library that is created in addition to a platform that implements a specific .Net Standard version could be shared by all of the apps that operate on any of the platforms that carry out the exact .Net Standard version. Let’s move on to the next FAQ for ASP .NET Interview Questions

7. How can I explain my ASP .NET project in interview?

For starters, you have to be self-confident. And then you definitely need to skillfully do this while you present yourself by additionally bringing up your project. When you’re made to describe your project, prepare precisely how to respond to the following questions for certain.

1. Explain the issue you solved.
2. Explain whatever you created.
3. Explain your role.
4. Did you accomplish what you were determined to do?
5. How could you attempt to make it more efficient?
6. The reason why did you opt for this particular tactic?
7. What exactly are the complications you’ve encountered?
8. Explain probably the toughest obstacle you’ve experienced and exactly how you fix it.

Furthermore, go through this blog of ASP .NET Interview Questions to prepare for a job interview. Let’s move on to the next FAQ for ASP .NET Interview Questions

8. What are the most important aspects of .NET?

.NET is an infrastructure that comprises numerous attributes such as application domain, a typical sort system and profiling. Isolating one or perhaps 2 important pieces might be a difficult task, however, the interviewer could be looking for the answers “Common Language Runtime” and  “class library”

It is important to produce a case for why those’re probably the most crucial features. This’s the opportunity to exhibit your abilities go further than just technical since you can likewise use critical thinking. Let’s move on to the next FAQ for ASP .NET Interview Questions

9. What is ADO NET Framework?

ADO.NET leverages the strength of XML to offer disconnected access to data. ADO.NET is composed of a couple of classes that are employed for linking to a database, offering access to relational data, XML, and application data, and finding outcomes. ADO.NET data providers consist of classes that signify the provider’s Connection, Command, DataReader and DataAdapter objects (among others). The following figure demonstrates precisely how ADO.NET matches into the interaction between a Web client and the DBMS.

10. What is threading in .NET?

Threads are tasks that could operate concurrently with alternative threads and could share information. When your program starts, it generates a thread for the entry point of the program, generally the Main function. Thus, you can consider a “program” as being composed of threads. The .NET Framework enables you to work with threading in your programs to run code in parallel to one another. This is for 2 reasons:

If the thread running your graphical user interface performs time-consuming work, your program could seem to be unresponsive. Using threading, you can set up a new thread to carry out jobs and state its progress to the GUI thread.On PCs with over one CPU or CPUs with more than a single core, threads can optimize the utilization of computational resources, speeding up activities. These ASP .NET Interview Questions can be asked in interviews so it’s important that students have in-depth knowledge of the topic.