#Blazor interview questions

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Blazor Latest Interview Questions 2024

Introduction Are you preparing for a Blazor interview in 2024 and want to be well-prepared with the latest interview questions and answers? Look no further! In this article, we will provide you with a comprehensive list of Blazor interview questions that will help you crack your interview with confidence. 1. What is Blazor? Blazor is a web development framework developed by Microsoft that allows…

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asp.net interview questions and answers

We’ll concentrate on ASP.NET and interview questions on asp.net in this post. We assume that you have experience with C# programming to condense the article’s scope. It is also anticipated that you have a basic grasp of standard object-oriented ideas and front-end technologies like HTML, CSS, and JavaScript. ASP.NET Interview Questions:

1) What is a web application?

Ans. Software that users may access using a web browser like Chrome or Firefox is known as a web application. The browser sends an HTTP request to access a specific URL for the web application. The user receives a dynamic HTML response built by the web application server after intercepting and processing the request. StackOverflow, Reddit, Google, and other well-known online apps are a few examples.

A web application differs from a standard webpage in several ways. Websites are static. The website returns an HTML page when you visit it without building its contents. If you reload the browser, the same page will appear. An online program, however, can provide a different result each time you use it.

Take the following scenario: You post a question on Stack Overflow. You will see your query when you first go to the URL. If another user responds to your query, the browser will show that response on your subsequent visit to the same URL.

A web application is made up of several distinct layers. A three-layered architecture consisting of display, business, and data levels is a typical example. For instance, the browser (presentation) speaks to the application server to retrieve the required data, which then connects to the database server. This is yet another common interview questions on asp.net.

2) What exactly is a web application framework, and what advantages does it Offer?

Ans.Learning how to build a modern web application could be scary. A standard set of features that most web applications provide include:

a. Create a dynamic response to match an HTTP request.

b. Permit users to log in and manage their data on the application.

c. Put the information in the database.

d. Connect to databases and manage transactions.

e. Send URLs to the proper procedures.

f. Supporting user authorization, sessions, and cookies.

g. Improve security and output formatting (e.g., HTML, JSON, XML).

Frameworks aid programmers in the creation, upkeep, and scaling of programs. They offer programs and libraries that make it easier to complete the before mentioned repetitive processes, reducing the amount of needless complexity.

3) What advantages does ASP.NET Core have over the original ASP.NET?

Ans. a) Cross-Platform:

The key benefit of ASP.NET Core is that, unlike the original ASP.NET framework, it is not dependent on the Windows operating system. Linux or a Mac may be used to create and operate production-ready ASP.NET Core applications. Since Windows licenses are not necessary when using an open-source operating system like Linux, you may save a lot of money.

b) Exemplary performance:

Additionally, it was created from the ground up with performance in mind. One of the quickest web application frameworks now.

c) Free Software:

Finally, it is open-source, and hundreds of developers actively contribute to it worldwide. Anyone may see, modify, and contribute to the source code, which is all accessible on GitHub. Despite the patches, bug fixes, and improvements made to the framework by contributors worldwide, it has led to a considerable increase in goodwill and confidence for Microsoft.

d) Modern technologies:

In addition to the conventional Model-View-Controller methodology, ASP.NET Core allows you to create apps utilizing cutting-edge technologies like Razor Pages and Blazor.

4) How does the HTTP protocol works?

Ans. An application-layer protocol called Hypertext Transfer Protocol (HTTP) is used to send hypermedia content like HTML. It manages the interaction between web servers and web browsers. HTTP uses the traditional client-server architecture. A client, such as a web browser, establishes a connection to send a request and waits for the server to respond.

The protocol HTTP makes it possible to retrieve resources, including HTML pages. It is a client-server protocol, which means that all requests for data transmission on the Internet are initiated by the recipient, which is frequently the Web browser.

5) What is a web server?

Ans. The words web server can describe software or hardware that functions alone or in tandem.

A web server is a machine with additional processing power and memory that keeps static assets like photos and JavaScript, CSS, and HTML files in addition to the back- end code for the application. Due to its internet connection, this computer enables the communication between many linked devices.

A web server is a piece of software that receives HTTP requests from clients like web browsers, processes them, and then sends back a response. The answer might be either static (an image or piece of text) or dynamic (a summation of the shopping cart's contents).

Web servers that are often used include Apache, Nginx, and IIS. If you take up asp.net training online, you will learn a lot about asp.

6) What is the NuGet package manager?

Ans. Not all of the code written by software engineers is original. They depend on programming community-created code libraries. Any contemporary development environment must offer a way for developers to obtain and utilize pre-existing libraries, sometimes called packages. For instance, the Node Package Manager (NPM) in the JavaScript ecosystem enables developers to identify and use libraries created by other JavaScript developers.

A package manager for the.NET ecosystem is called NuGet. Microsoft created it to give users access to thousands of.NET developer’s packages. It may also be used to distribute the code you’ve written.

Many open-source NuGet packages often support the functionality of an ASP.NET- developed web applications. Consider Newtonsoft. With 91,528,205 downloads as of this writing, the most widely used package for working with JSON data in.NET is JSON.

7) What is the goal of the Program class?

Ans. The main interface of our Program is the Program.cs class. A static void Main() method is where an ASP.NET program begins, much like a console application.

The request-handling web server is configured using this class. Application lifecycle management, including graceful shutdown, is the host's responsibility.

The host must configure a server and a pipeline for handling requests. The host also controls dependency injection, configuration, and logging.

8) What is the aim of the Startup class?

Ans. This class manages the middleware pipeline and service registration, two crucial components of your application.

Services are C# classes utilized by both the framework and your application to provide additional functionality. Databases and logging are some examples. When your Program is operating and in need of them, these services must be registered to be Instantiated.

Your application handles HTTP requests in a particular order using Middleware (the next question explains the concept of Middleware in detail).

Two methods are included in the Startup class: ConfigureServices() and Configure (). As its name indicates, the first technique registers every service the Program requires. Utilizing the second method, the middleware pipeline is set up.

9) What is the goal of the www-root folder?

Ans. The static files and built assets your web application needs, such as JavaScript, CSS, and pictures, are located in the www-root folder. The only folder in the whole project displayed to the browser in its current state is www-root.

10) What is caching?

Ans. Caching is the technique of temporarily storing data that is easier to reach than its an original place so that it may be obtained more rapidly the next time the same data is needed.

Your application's speed and scalability are enhanced by caching. It accomplishes this by making obtaining the data more accessible. Data that is expensive to develop and obtain and doesn’t change frequently might benefit from caching.

Caching options are available right out of the box with ASP.NET. For straightforward use cases, you may employ the IMemoryCache interface. It indicates a cache kept in the web server’s memory. Along with Redis, ASP.NET provides distributed caching, or a cache shared by several app servers.

Conclusion:

In this ASP.NET interview questions post, you learned about the traditional ASP.NET framework and its contemporary replacement, ASP.NET Core. The post covered various fundamental and sophisticated questions that might be asked during a job interview for a junior/intermediate developer position. We hope it will be helpful for your upcoming job interview!

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Dot Net Core Interview Questions and Answers - Part 04:

Q033. What is Blazor? What are the advantages of Blazor? Q034. What is the difference between Blazor Server and Blazor WebAssembly? Q035. What is the use of the UseDeveloperExceptionPage() in .Net Core? Q036. What is Transfer-Encoding in .Net Core? Q037. What is ASP.Net Core Identity? Q038. What is the difference between Stateful and Stateless authentication in .Net Core? Q039. What is the difference between OpenID, OAuth, and SAML? Q040. What is the Ok() helper method in ASP.NET Core? Q041. What is NotFound() helper method in ASP.NET Core? Q042. What is BadRequest() helper method in ASP.NET Core?

[stack247]

Monday Reading List

Blazor Server in .NET Core 3.0 scenarios and performance

Have heard about Blazor? If not, definitely check this post out. For those who already use Blazor, you can skip. Unless you also want to understand the inner working of Blazor.

Everything you need to know about resource tagging in Azure

Azure has feature to tag your resources for some times now. But, how do you use it the r…

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ASP.NET INTERVIEW QUESTIONS

ASP.NET is an Open Source web framework for building fast and secure web applications and services with .Net. ASP.NET is also a most appealing cross-platform framework that can run on any operating system, allowing you to build your ASP.NET web applications using HTML, CSS, JavaScript, or Jquery.

The ASP.NET training and asp.net interview question answer pdf help you create a web API that can be used with other third-party resources such as Microsoft, Facebook, or Google.

1. What is ASP.NET?

ASP.NET Framework is part of .NET framework used to create dynamic websites, web application,s and web services. It is a server-side technology that employs all languages that are .NET compatible, including C#, VB.NET, J#, etc., compiled in Microsoft Intermediate Language (MSIL). ASP.NET uses server control to develop a fast and interactive application in an easy way.

All ASP.Net applications would also be written in multiple choice of .Net languages ​​, which include C#, VB.Net, and J#, and it provides numerous development modes, which help in developing an application in an easy and better way.

ASP.NET Features:

● It uses VB.NET and C# languages ​​to build the website.

● This allows us to separate the HTML layout with server-side code.

● This allows us to make the same class name qualify under a different namespace.

● ASP.NET pages are compiled, not interpreted.

ASP.NET is a query processing engine. It accepts incoming requests and routes them through a pipeline to an endpoint where programmers can add code to handle the requests.

2. What are the advantages of ASP.NET Core over ASP.NET Classic?

Cross-platform: The main advantage of ASP.NET Core is that it is not tied to a Windows operating system like the older ASP.NET framework. You can develop and run production-ready ASP.NET Core apps on Mac or Linux. Choosing an open-source operating system like Linux saves you significantly because you don't have to pay for Windows licenses. High performance: It is also designed from the ground up, with performance in mind. It is now one of the fastest web application frameworks.

Open Source: Finally, it is open-source and actively contributed by thousands of developers worldwide. All source code is hosted on GitHub for anyone to view, modify, and contribute.

This has resulted in significant goodwill and trust for Microsoft, despite the patches, bug fixes, and improvements added to the framework by global contributors.

New technologies: With ASP.NET Core, in addition to the conventional Model-View-Controller methodology, you may design apps using new technologies like Razor Pages and Blazor.

3. What are the different page events in ASP.NET?

Here are the page-level events in ASP.NET.

PreInit: This is the first event on a page that sets values ​​, such as a master page.

2. Init: This event fires after each control initializes. You can use this event to change the initialized value of rules.

3. InitComplete: This event is raised after all initializations of a page, and its controls are Complete.

4.PreLoad: This event fires before the view state of a page and its controls are loaded and before the postback of the page is processed. This event is useful when you need to write code after page initialization.

5. Load(PageLoad): The page load event is typically used to verify the postback and then set control properties appropriately. After this event, the child controls load event is called.

6.ControlEvents(Postback): This event is called when a page or its controls cause a postback, such as ButtonClick event, SelectedIndexChanged event, CheckedChanged events, etc.

7.LoadComplete: During this event, all controls are loaded even after further processing can be done here.

8.PreRender: This event occurs before the view state is saved. It also allows final modifications to the page or its control.

9.SaveStateComplete: Any changes made to the page's controls are discarded here. This event is helpful if you must write a process requiring the definition of the display state.

10. Render: its not an event. Its a method of a page object and its checks. At this point, the controls are rendered in HTML, DHTML, and client-side scripting for the browser.

11. Unload: This event is used to clean up code. You can use it to unload resources manually.

4. What are server controls in ASP.NET?

ASP.NET server controls are objects on ASP.NET pages that run when the web page is requested. Many server controls, such as buttons and text boxes, are similar to HTML controls. In addition to HTML controls, many controls include complex behavior, such as controls used to connect to data sources and display data.

6. What is the difference between Hyperlink and LinkButton?

The hyperlink control does not have Click and Command events, whereas the LinkButton control has these events, which can be handled in the web pages code-behind file.

7. How many navigation controls are there in ASP.NET?

There are three navigation controls in ASP.NET.

● SiteMapPath

● Menu

● tree structure

8. When do you choose ASP.NET Classic over ASP.NET Core?

While its a better choice in almost every way, you don’t need to upgrade to ASP.NET Core if you’re maintaining a legacy ASP.NET application that you’re happy with and that's no longer actively developed. This is one of the common asp.net interview questions and Answers.

A better option is ASP.NET MVC if you:

● You dont need cross-platform support for your web application.

● I need a stable environment to work in.

● Have closer release schedules.

● Already working on an existing application and extending its functionality.

● Already have a team in place with ASP.NET knowledge.

9. What is the difference between client-side and server-side validations?

Client-side validations work on the client side using scripting languages ​​such as JavaScript, jQuery, and VBScript. On the other hand, server-side validations work on the server side using programming languages ​​like C#, VB, F#, etc. When you submit or send data to the server, server validations take effect.

10. What are globalization and localization?

Globalization is the process of designing and developing an app that works for multiple cultures or locations. In other words, globalization is creating and developing an application so that users from various cultures can use it. Globalization makes your application ready for international markets. This process involves:

● Identify the culture and locale that the application should support.

● Design features to support those cultures and locations.

● Write code that works equally well with all supported cultures and places.

Localization is customizing your app for a given locale or culture. In other words, localization

is customizing your app to behave according to your current culture or locale. Typically,

localization translates your applications user interface into the contemporary culture or Locale.

Conclusion

There are several asp.net interview questions that one needs to follow if one is trying to get a job. To know more about asp, you can go for the asp.net tutorial. Well, some of these questions are for freshers, and others for experienced ones as well. All one needs to do is clear some concepts, which will be enough.