Basic .NET and ASP.NET interview questions

Submitter said questions were asked in a US company hiring a Web developer.

1. Explain the .NET architecture.
2. How many languages .NET is supporting now? - When .NET was introduced it came with several languages. VB.NET, C#, COBOL and Perl, etc. The site DotNetLanguages.Net says 44 languages are supported.
3. How is .NET able to support multiple languages? - a language should comply with the Common Language Runtime standard to become a .NET language. In .NET, code is compiled to Microsoft Intermediate Language (MSIL for short). This is called as Managed Code. This Managed code is run in .NET environment. So after compilation to this IL the language is not a barrier. A code can call or use a function written in another language.
4. How ASP .NET different from ASP? - Scripting is separated from the HTML, Code is compiled as a DLL, these DLLs can be executed on the server.
5. Resource Files: How to use the resource files, how to know which language to use?
6. What is smart navigation? - The cursor position is maintained when the page gets refreshed due to the server side validation and the page gets refreshed.
7. What is view state? - The web is stateless. But in ASP.NET, the state of a page is maintained in the in the page itself automatically. How? The values are encrypted and saved in hidden controls. this is done automatically by the ASP.NET. This can be switched off / on for a single control
8. Explain the life cycle of an ASP .NET page.
9. How do you validate the controls in an ASP .NET page? - Using special validation controls that are meant for this. We have Range Validator, Email Validator.
10. Can the validation be done in the server side? Or this can be done only in the Client side? - Client side is done by default. Server side validation is also possible. We can switch off the client side and server side can be done.
11. How to manage pagination in a page? - Using pagination option in DataGrid control. We have to set the number of records for a page, then it takes care of pagination by itself.
12. What is ADO .NET and what is difference between ADO and ADO.NET? - ADO.NET is stateless mechanism. I can treat the ADO.Net as a separate in-memory database where in I can use relationships between the tables and select insert and updates to the database. I can update the actual database as a batch.

Interview Questions and Answer on .Net,C#,ASP.NET,SQL Server

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Summary of Topics Covered in .Net Training

We understand that working on a project is one thing but clearing interviews needs a change of mind set and this solution is especially meant for the same. From the same aspect we have divided our interview videos are divided in 5 essential categories :-

• Basic .NET, ASP.NET, OOPS and SQL Server. Interview questions and answers
• New technologies WCF, WPF, Silverlight , LINQ, Azure, EF and 4.0. Interview questions and answers
• Design pattern, UML, Architecture, Estimation, Project management, VSTS. Interview questions and answers
• Complete Invoicing project end to end. Interview questions and answers
• Server products (Sharepoint 2007 questions and answer videos). Interview questions and answers
• Best practices and SQL performance tuning. Interview questions and answers

Details of the above .Net Training Topics

Below is our detail video list of the above main .Net Training topics. All .net training videos go in-depth with source code and then explaining you the one liner which you need to speak in the interview.

Basic .NET, ASP.NET, OOPS and SQL Server Interview questions and answers.

• What is IL code, CLR,CTS,GAC,GC?>
• How can we do Assembly versioning?
• can you explain how ASP.NET application life cycle and page life cycle events fire?
• What is the problem with Functional Programming?
• Can you define OOP and the 4 principles of OOP?
• What are Classes and Objects?
• What is Inheritance?
• What is Polymorphism, overloading, overriding and virtual?
• Can you explain encapsulation and abstraction?
• What is an abstract class?
• Define Interface & What is the diff. between abstract & interface?
• What problem does Delegate Solve ?
• What is a Multicast delegate ?
• What are events and what's the difference between delegates and events?
• How can we make Asynchronous method calls using delegates ?
• What is a stack, Heap, Value types and Reference types ?
• What is boxing and unboxing ?
• Can you explain ASP.NET application and Page life cycle ?
• What is Authentication, Authorization, Principal & Identity objects?
• How can we do Inproc and outProc session management ?
• How can we windows , forms and passport authentication and authorization in ASP.NET ?
• In a parent child relationship which constructor fires first ?
• WCF,WPF,Silverlight ,LINQ, Azure and EF 4.0 interview question and answers
• What is SOA, Services and Messages ?
• What is the difference between Service and Component?
• What are basic steps to create a WCF service ?
• What are endpoints, address, contracts and bindings?
• What are various ways of hosting WCF service?
• What is the difference of hosting a WCF service on IIS and Self hosting?
• What is the difference between BasicHttpBinding and WsHttpBinding?
• How can we do debugging and tracing in WCF?
• Can you explain transactions in WCF (theory)?
• How can we self host WCF service ?
• What are the different ways of implementing WCF Security?
• How can we implement SSL security on WCF(Transport Security)?
• How can we implement transport security plus message security in WCF ?
• How can we do WCF instancing ?
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