Asp Net Interview Questions
Questions about Asp Net Interviews
Asp Net Interview Questions are a set of commonly asked questions during interviews for web development positions, especially for Asp Net developers. These questions cover various aspects of Asp Net such as its features, architecture, security, performance, and development tools. They are designed to test the candidate's knowledge and understanding of Asp Net and to assess their ability to troubleshoot and solve real-world problems. Knowing these questions and their answers can help candidates prepare for their interviews and increase their chances of securing a job in the competitive field of web development.
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1 - What is ASP.NET?
ASP.NET is a web development framework used for building dynamic and interactive web applications. It is part of the .NET framework and is mainly used for building web applications using languages like C# or VB.NET.
2) What are the different types of ASP.NET web applications?
The different types of ASP.NET web applications include Web Forms, ASP.NET MVC, Web API, and ASP.NET Core. Each type has its own approach for building web applications based on the specific needs and requirements of the project.
3) What is the difference between an ASP.NET web form and an ASP.NET MVC?
In ASP.NET web forms, the focus is on creating a user interface by using server side controls and event driven programming. On the other hand, ASP.NET MVC separates the application into three components Model, View, and Controller, making it more suitable for complex and large scale applications.
4) What is the advantage of using the ASP.NET MVC framework?
The ASP.NET MVC framework offers several advantages, including better testability as it follows the Model View Controller architecture, improved control over HTML, and cleaner code structure.
5) What is an ASP.NET web service?
An ASP.NET web service is a component that accepts requests and sends responses over the internet using HTTP. It follows the SOAP (Simple Object Access Protocol) standard and allows applications to communicate with each other over the internet.
6) What is the difference between a web service and a web API?
A web service follows the SOAP standard and uses XML as the data format, while a web API follows the REST (Representational State Transfer) standard and uses JSON or XML as the data format.
7) What is the role of the Global.asax file in an ASP.NET application?
The Global.asax file contains the application wide events like Application_Start and Application_End that are executed when the application starts and ends. It also handles application level errors and maintains the application state.
8) What is ViewState and how does it work in ASP.NET?
ViewState is a client side state management technique used in ASP.NET to store the state of a web page in a hidden field. It is encrypted and sent to the server with each request, allowing the server to re populate the controls' values and maintain their state.
9) What is the difference between Server side and Client side validation?
Server side validation is performed on the server after the form is submitted, whereas client side validation is done on the client side browser using JavaScript before the form is submitted. Server side validation is more secure, but client side validation provides a better user experience.
10) What is a session in ASP.NET?
A session in ASP.NET is a temporary storage area that is unique to each user and is used to store user specific data. It is available throughout the user's browsing session and gets destroyed when the session expires or the user closes the browser.
11) What are the different types of caching in ASP.NET?
The different types of caching in ASP.NET include Output Caching, Fragment Caching, and Data Caching. Output caching caches the entire page, Fragment caching caches specific parts of a page, and Data caching stores data retrieved from remote data sources.
12) How do you manage user authentication and authorization in an ASP.NET application?
ASP.NET provides built in authentication and authorization features, such as Forms Authentication, Windows Authentication, and Membership Providers. Forms Authentication is used to manage user login, while Windows Authentication is used for Windows based applications. Membership Providers offer flexible options for managing user authentication and authorization.
13) What is a web.config file, and what does it contain?
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The web.config file is an XML based configuration file used to configure an ASP.NET application. It contains settings such as the database connection string, session state, authentication, authorization, runtime settings, and Custom Error Pages.
14) What are the different types of state management techniques in ASP.NET?
The different types of state management techniques in ASP.NET include Client Side State Management, Server Side State Management, and In Process State Management. Client side state management includes techniques like ViewState, Session Storage, and Cookie Storage. Server side state management uses the Application, Cache, and Session objects, while In Process state management involves storing data in variables.
15) What are the advantages of using ASP.NET for web development?
Some of the advantages of using ASP.NET for web development include the ability to develop scalable and robust applications, extensive support for web standards, built in security features, and a vast collection of libraries and tools. It also offers cross platform compatibility through ASP.NET Core, making it a popular choice for web development.
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