Asp.Net Interview Questions

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Asp.Net Interview Questions ASP.NET INTERVIEW QUESTIONS Question:-What do you mean by Share Point Portal? Answer: Here I have taken information regarding Share Point Portal Server 2003 provides mainly access to the crucial business information and applications. With the help of Share Point Server we can server information between Public Folders, Data Bases, File Servers and the websites that are based on Windows server 2003. This Share Point Portal is integrated with MSAccess and Windows servers,So we can get a Wide range of document management functionality. We can also create a full featured portal with readymade navigation and structure. Question:-What is cross page posting in ASP.NET2.0? Answer: When we have to post data from one page to another in application we used server.transfer method but in this the URL remains the same but in cross page posting there is little different there is normal post back is done but in target page we can access values of server control in the source page.This is quite simple we have to only set the PostBackUrl property of Button,LinkButton or imagebutton which specifies the target page.In target page we can access the PreviousPage property.And we have to use the @PreviousPageType directive.We can access control of PreviousPage by using the findcontrol method.When we set the PostBackURL property ASP.NET framework bind the HTML and Javascript function automatically. Question: What you thing about the Web Portal? Answer: Web portal is nothing but a page that allows a user to customize his/her homepage. We can use Widgets to create that portal we have only to drag and drop widgets on the page. The user can set his Widgets on any where on the page where he has to get them. Widgets are nothing but a page area that helps particular function to response. Widgets example are address books, contact lists, RSS feeds, clocks, calendars, play lists, stock tickers, weather reports, traffic reports, dictionaries, games and another such beautiful things that we can not imagine. We can also say Web Parts in Share Point Portal. These are one of Ajax-Powered. Question: How to start Outlook, Notepad file in AsP.NET with code ? Answer: Here is the syntax to open outlook or notepad file in ASP.NET VB.NET Process.Start("Notepad.exe") Process.Start("msimn.exe"); C#.NET System.Diagnostics.Process.Start("msimn.exe"); System.Diagnostics.Process.Start("Notepad.exe"); Question: What is the purpose of IIS ? Answer: We can call IIS(Internet Information Services) a powerful Web server that helps us creating highly reliable, scalable and manageable infrastructure for Web application which runs on Windows Server 2003. IIS helps development center and increase Web site and application availability while lowering system administration costs. It also runs on Windows NT/2000 platforms and also for above versions. With IIS, Microsoft includes a set of programs for building and administering Web sites, a search engine, and support for writing Web-based applications that access database. IIS also called http server since it process the http request and gets http response. Question: What is main difference between GridLayout and FormLayout ? Answer: GridLayout helps in providing absolute positioning of every control placed on the page. It is easier to devlop page with absolute positioning because control can be placed any where according to our requirement.But FormLayout is little different only experience Web Devloper used this one reason is it is helpful for wider range browser.If there is absolute positioning we can notice that there are number of DIV tags.But in FormLayout whole work are done through the tables. Question: How Visual SourceSafe helps Us? Answer: One of the powerful tool provided by Microsoft to keep up-to-date of files system its keeps records of file history once we add files to source safe it can be add to database and the changes add by different user to this files are maintained in database from that we can get the older version of files to. This also helps in sharing, merging of files. Question:-Can you define what is SharePoint and some overview about this? Answer: SharePoint helps workers for creating powerful personalized interfaces only by dragging and drop pre-defined Web Part Components. And these Web Parts components also help non programmers to get information which care and customize the appearance of Web pages. To under stand it we take an example one Web Part might display a user's information another might create a graph showing current employee status and a third might show a list of Employees Salary. This is also possible that each functions has a link to a video or audio presentation. So now Developers are unable to create these Web Part components and make them available to SharePoint users. Question:-What is different between WebUserControl and in WebCustomControl ? Answer: Web user controls :- Web User Control is Easier to create and another thing is that its support is limited for users who use a visual design tool one gud thing is that its contains static layout one more thing a seprate copy is required for each application. Web custom controls:-Web Custom Control is typical to create and gud for dynamic layout and another thing is it have full tool support for user and a single copy of control is required because it is placed in Global Assembly cache. Question:-What is Sandbox in SQL server and explain permission level in Sql Server ? Answer: Sandbox is place where we run trusted program or script which is created from the third party. There are three type of Sandbox where user code runs. Safe Access Sandbox:-Here we can only create stored procedure, triggers, functions,datatypes etc .But we does not have access memory ,disk etc. External Access Sandbox:-We can access File systems outside the box. We can not play with threading, memory allocation etc. Unsafe Access Sandbox:-Here we can write unreliable and unsafe code. Question:-How many types of cookies are there in .NET ? Answer: Two type of cookeries. a) single valued eg request.cookies(”UserName”).value=”dotnetquestion” b)Multivalued cookies. These are used in the way collections are used example request.cookies(”CookiName”)(”UserName”)=”dotnetquestionMahesh” request.cookies(”CookiName”)(”UserID”)=”interview″ Question: When we get Error 'HTTP 502 Proxy Error' ? Answer: We get this error when we execute ASP.NET Web pages in Visual Web Developer Web server, because the URL randomly select port number and proxy servers did not recognize the URL and return this error. To resolve this problem we have to change settings in Internet Explorer to bypass the proxy server for local addresses, so that the request is not sent to the proxy. Question:-What do you mean by three-tier architecture? Answer: The three-tier architecture was comes into existence to improve management of code and contents and to improve the performance of the web based applications. There are mainly three layers in three-tier architecture. the are define as follows (1)Presentation (2)Business Logic (3)Database (1)First layer Presentation contains mainly the interface code, and this is shown to user. This code could contain any technology that can be used on the client side like HTML, JavaScript or VBScript etc. (2)Second layer is Business Logic which contains all the code of the server-side .This layer have code to interact with database database and to query, manipulate, pass data to user interface and handle any input from the UI as well. (3)Third layer Data represents the data store like MS Access, SQL Server, an XML file, an Excel file or even a text file containing data also some addtional database are also added to that layers. Question: What is Finalizer in .NET define Dispose and Finalize? Answer: We can say that Finalizer are the methods that's helps in cleanp the code that is executed before object is garbage collected .The process is called finalization . There are two methods of finalizer Dispose and Finalize .There is little diffrenet between two of this method . When we call Dispose method is realse all the resources hold by an object as well as all the resorces hold by the parent object.When we call Dispose method it clean managed as well as unmanaged resources. Finalize methd also cleans resources but finalize call dispose clears only the unmanged resources because in finalization the garbase collecter clears all the object hold by managed code so finalization fails to prevent thos one of methd is used that is: GC.SuppressFinalize. Question: Define SMTPclient class in Dot Net framework class library? Answer: Each classes in dotnet framework inclue some properties,method and events.These properties ,methods and events are member of a class.SMTPclient class mainly concern with sending mail.This class contain the folling member. Properties:- Host:-The name or IP address of email server. Port:-Port that is use when sending mail. Methods:- Send:-Enables us to send email synchronously. SendAsynchronous:-Enables us to send an email asynchronously. Event:- SendCompleted:-This event raised when an asynchronous send opertion completes. Question: What is late binding? Answer: When code interacts with an object dynamically at runtime .because our code literally doesnot care what type of object it is interacting and with the methods thats are supported by object and with the methods thats are supported by object .The type of object is not known by the IDE or compiler ,no Intellisense nor compile-time syntax checking is possible but we get unprecedented flexibilty in exchange.if we enable strict type checking by using option strict on at the top of our code modules ,then IDE and compiler will enforce early binding behaviour .By default Late binding is done.
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