ASP.NET interview questions

ASP.NET frequently asked interview questions 

Next>> Part 1 | Part 2 | Part 3 | Part 4 | part 5 | part 6 | part 7 | part 8 | part 9   What is AppSetting Section in “Web.Config” file?  Latest answer: AppSetting section is used to set the user defined values. For e.g.: The ConnectionString which is used through out the project for database connection......... Read answer Difference between Server.Transfer and response.Redirect. Latest answer: Following are the major differences between them: Server.Transfer - The browser is directly redirected to another page. There is no round trip........... Read answer Difference between authentication and authorization. Latest answer: Authentication is the process of verifying the identity of a user. Authorization is process of checking whether the user has access rights to the system.............. Read answer What is impersonation in ASP.NET? Latest answer: By default, ASP.NET executes in the security context of a restricted user account on the local machine. However, at times it becomes necessary to access network resources which require additional permissions............. Read answer What is event bubbling in .NET? Latest answer: The passing of the control from the child to the parent is called as bubbling. Controls like DataGrid, Datalist, Repeater, etc can have child controls.......... Read answer Describe how the ASP.NET authentication process works. Latest answer: ASP.NET runs inside the process of IIS due to which there are two authentication layers which exist in the system............. Read answer Explain the ways of authentication techniques in ASP.NET Latest answer: Selection of an authentication provider is done through the entries in the web.config file for an application.The modes of authentication are:......... Read answer Windows authentication. Latest answer: If windows authentication mode is selected for an ASP.NET application, then authentication also needs to be configured within IIS since it is provided by IIS............ Read answer Passport authentication Latest answer: Passport authentication provides authentication using Microsoft’s passport service. If passport authentication is configured and users login using passport then the authentication duties are off-loaded to the passport servers............. Read answer Forms authentication Latest answer: Using form authentication, ones own custom logic can be used for authentication. ASP.NET checks for the presence of a special session cookie when a user requests a page for the application. ............ Read answer Explain how authorization works in ASP.NET Latest answer: ASP.NET impersonation is controlled by entries in the applications web.config file. Though the default setting is no impersonation, it can be explicitly set using: ........... Read answer Difference between Datagrid, Datalist and repeater. Latest answer: Datagrid: The HTML code generated has an HTML TABLE element created for the particular DataRow and is a tabular representation with Columns and Rows. Datagrid has a in-built support for Sort, Filter and paging the Data...........  Read answer What are the events in GLOBAL.ASAX file? Latest answer: Global.asax file contains the following events: Application_Init - Fired when an application initializes or is first called. It is invoked for all HttpApplication object instances............. Read answer What are different IIS isolation levels supported in ASP.NET? Latest answer: IIS has three level of isolation:- LOW (IIS process): In this main IIS process and ASP.NET application run in same process due to which if one crashes, the other is also affected............ Read answer Difference between Gridlayout and FlowLayout. Latest answer: GridLayout provides absolute positioning for controls placed on the page. FlowLayout positions items down the page like traditional HTML......... Read answer What is Authentication in ASP.NET? Latest answer: Authentication is the process of verifying user’s details and find if the user is a valid user to the system or not....... Read answer What is Authorization in ASP.NET? Latest answer: Authorization is a process that takes place based on the authentication of the user....... Read answer

Explain the concept of Automatic Memory Management in ASP.NET. Latest answer: The .NET framework has introduced a concept called Garbage collector. This mechanism keeps track of the allocated memory references and releases the memory when it is not in reference.......... Read answer What is Finalizer in .NET? Latest answer: Finalizer in .NET are the methods that help in cleanup the code that is executed just before the object is garbage collected.............. Read answer Explain the types of cookies in ASP.NET. Latest answer: There are two types of cookies in ASP.NET -Single valued cookies................ Read answer What are the ways to retain variables between requests? Latest answer: Following are the ways to retain variables between requests:Context.Handler -This object can be used to retrieve public members of the web form from a subsequent web page........... Read answer Describe the Cookies collection in ASP.NET. Latest answer: Cookies are text files that store information about the user. A user is differentiated from the other by the web server with the help of the cookies. It can also determine where the user had been before with them.............  Read answer What is the Common Language Specification (CLS)? Latest answer: The CLS contains constructs and constraints which provides a guideline for library and compiler writers.Any language that supports CLS can then use the libraries due to whic the languages can integrate with each other................ Read answer Test your ASP.NET knowledge with our multiple choice questions! Part 1 | Part 2 | Part 3 | Part 4 | part 5 | part 6 | part 7 | part 8 | part 9   Next>> Also read .NET crystal reports How do we access crystal reports in .NET? What are the various components in crystal reports? What basic steps are needed to display a simple report in crystal?.......... ASP.NET 2.0 Data Controls One of the important goals of ASP.NET 2.0 is 70% code reduction. The data controls supplied with ASP.NET 2.0 play an important role in making this ambitious goal a reality. Data source controls provide a consistent and extensible method for declaratively accessing data from web pages.............. ASP.NET 2.0 New Controls In addition to the new controls, ASP.NET 2.0 also provides numerous enhancements to existing controls that make these controls more versatile than ever before in building component-based web pages. For example, the Panel control now has a DefaultButton property that specifies which button should be clicked if the user presses the Enter key while the panel has the focus......... ASP.NET 2.0 Themes One of the neat features of ASP.NET 2.0 is themes, which enable you to define the appearance of a set of controls once and apply the appearance to your entire web application............ ASP.NET 2.0 Web Parts Framework ASP.NET 2.0 ships with a Web Parts Framework that provides the infrastructure and the building blocks required for creating modular web pages that can be easily customized by the users. You can use Web Parts to create portal pages that aggregate different types of content, such as static text, links, and content that can change at runtime.................. ASP.NET Globalization-Localization  Here you have description of globalization, localization and their approaches in ASP.NET. It also describes resource files and satellite assemblies. ASP.NET Master Pages  This article has content about master page, its advantages and how to create master page in ASP.NET. It also describes about multiple master page. ASP.NET MVC Framework The ASP.NET MVC framework was released by Microsoft as an alternative approach to web forms when creating ASP.NET based web applications...........