Asp Net Interview Questions Experienced
Expertly Curated Interview Questions for ASP.NET Experienced Professionals
Asp Net Interview Questions Experienced
Asp Net interview questions for experienced professionals revolve around practical knowledge and hands-on experience with the framework. Questions may cover advanced concepts like object-oriented programming, database connectivity, security, performance optimization, and design patterns. Experienced candidates may also be asked about their experience with popular Asp Net libraries and tools, debugging techniques, and how they handle challenging situations in their previous projects. Employers may also inquire about the candidate's ability to work in a team and their problem-solving skills. Additionally, questions related to the latest updates and advancements in Asp Net may also be asked to assess the candidate's willingness to learn and stay updated in their field.
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1 - What is ASP.NET?
ASP.NET is an open source web development framework that is used to build dynamic and interactive web applications. It is widely used to create websites, web services, and web applications.
2) What are the advantages of using ASP.NET?
Some of the advantages of using ASP.NET are:
it provides a fast and efficient development model
it offers server side code execution, making it more secure than client side scripting
it supports multiple languages and allows for easy integration with third party tools
it has built in authentication and authorization features
it supports automatic deployment and easy maintenance of web applications.
3) Can you explain the architecture of ASP.NET?
The architecture of ASP.NET is based on the Model View Controller (MVC) pattern. This pattern separates the application into three components: the model (for handling data), the view (for presenting the data to the user), and the controller (for handling user input and controlling the flow of the application).
4) What is the difference between MVC and Web Forms?
MVC and Web Forms are two different programming models in ASP.NET. MVC follows the model view controller pattern, while Web Forms uses a page centric approach. MVC is more suitable for complex and large applications, while Web Forms is more suitable for rapid development and simple applications.
5) What is the difference between Server side and Client side code?
Server side code is executed on the server, and the results are sent back to the client. This code is not visible to the client and is mainly used for processing data and performing server side operations. On the other hand, client side code is executed on the client's browser and is used to enhance the user interface and provide interactivity.
6) What are the different types of caching in ASP.NET?
There are three types of caching in ASP.NET: output caching, fragment caching, and data caching. Output caching stores entire pages in memory, fragment caching stores only specific parts of a page, while data caching stores frequently accessed data for faster retrieval.
7) How does ASP.NET ensure security?
ASP.NET provides various security features such as authentication, authorization, and secure communication using SSL. It also has built in features like cross site scripting protection, request validation, and form authentication to prevent common security threats.
8) What are the different authentication modes in ASP.NET?
There are three authentication modes in ASP.NET:
Windows authentication: it authenticates users against a Windows server.
Forms authentication: it allows custom login forms and user credential management.
Passport authentication: it allows users to authenticate using a central authentication service like Microsoft Passport.
9) What is ViewState in ASP.NET?
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ViewState is a hidden field that stores the state of a web page and its controls, to maintain the state between postbacks. It is mainly used to track changes made to controls on the page and restore their values on postback.
10) What is a postback in ASP.NET?
In ASP.NET, when a web form is submitted to the server, it triggers an event called a postback. During postback, the state of the form and its controls is sent back to the server for processing. This allows for building dynamic web applications that can respond to user input.
11) What are the different types of validation controls in ASP.NET?
There are six types of validation controls in ASP.NET:
RequiredFieldValidator: checks if a field is empty.
RangeValidator: checks if a value is within a specified range.
RegularExpressionValidator: checks if a value matches a specified pattern.
CompareValidator: checks if a value is equal to another control's value.
CustomValidator: allows custom validation logic to be implemented.
ValidationSummary: displays a summary of all validation errors on a page.
12) What is the Global.asax file in ASP.NET?
Global.asax is an optional file that is automatically created when creating an ASP.NET application. It contains global event handlers that can be used to handle application level events such as application start, end, and error handling.
13) What is the use of App_Code folder in ASP.NET?
The App_Code folder is used to store code files that are shared across the entire application. This code can be accessed by any page or control in the application, making it useful for creating reusable components or classes.
14) How do you handle errors in ASP.NET?
In ASP.NET, errors can be handled using try catch blocks and exception handling. Custom error pages can also be created to provide a user friendly error message. Additionally, the Global.aspx file can be used to handle application level errors.
15) What is the role of the Global Assembly Cache (GAC) in ASP.NET?
The Global Assembly Cache (GAC) is a central repository used to store globally shared assemblies. These assemblies can be accessed by different web applications and do not need to be deployed to the application's bin directory, saving disk space and reducing risks of version conflicts.
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