What is a Web Service?

.NET Interview Questions and Answers

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38. What is a Web Service?

A web service is a software component that exposes itself through the open communication channels of the Internet. Applications running on remote machines, on potentially different platforms, can access these components in a language and platform-independent manner. A Web Service is a group of functions, packaged together for use in a common framework throughout a network.

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Other Interview Questions

• What is .NET?
• How many languages .NET is supporting now?
• How is .NET able to support multiple languages?
• How ASP .NET different from ASP?
• What is smart navigation?
• What is view state?
• How do you validate the controls in an ASP .NET page?
• Can the validation be done in the server side? Or this can be done only in the Client side?
• How to manage pagination in a page?
• What is ADO .NET and what is difference between ADO and ADO.NET?
• Observations between VB.NET and VC#.NET?
• Advantages of migrating to VB.NET ?
• Advantages of VB.NET
• Using ActiveX Control in .Net
• What is Machine.config?
• What is Web.config?
• What is the difference between ADO and ADO.NET?
• What is the difference between VB and VB.NET?
• What is a Strong Name?
• What is a Manifest?
• Creating a Key Pair?
• What is the difference between "using System.Data;" and directly adding the reference from "Add References Dialog Box"?
• What is GAC?
• What is a Metadata?
• What is managed code and managed data?
• What is .NET / .NET Framework?
• What is Reflection?
• What is "Common Type System" (CTS)?
• What is "Common Language Specification" (CLS)?
• What is "Common Language Runtime" (CLR)?
• What are Attributes?
• What are the Types of Assemblies?
• What is an Intermediate language?
• ASP.NET Authentication Providers and IIS Security
• What is the difference between ASP and ASP.NET?
• Using COM Component in .Net
• What is an assembly?
• What is a Web Service?
• webFarm Vs webGardens
• What is the difference between a namespace and assembly name?
• What’s a Windows process?
• What’s typical about a Windows process in regards to memory allocation?
• Explain what relationship is between a Process, Application Domain, and Application?
• What are possible implementations of distributed applications in .NET?
• What are the consideration in deciding to use .NET Remoting or ASP.NET Web Services?
• What’s a proxy of the server object in .NET Remoting?
• What are remotable objects in .NET Remoting?
• What are channels in .NET Remoting?
• What security measures exist for .NET Remoting in System.Runtime.Remoting?
• What is a formatter?
• Choosing between HTTP and TCP for protocols and Binary and SOAP for formatters, what are the trade-offs?
• What’s SingleCall activation mode used for?
• What’s Singleton activation mode?
• How do you define the lease of the object?
• Can you configure a .NET Remoting object via XML file?
• How can you automatically generate interface for the remotable object in .NET with Microsoft tools?
• What is Delegation?
• What is "Microsoft Intermediate Language" (MSIL)?
• Differences between Datagrid, Datalist and Repeater?
• I am constantly writing the drawing procedures with System.Drawing.Graphics, but having to use the try and dispose blocks is too time-consuming with Graphics objects. Can I automate this?
• How do you trigger the Paint event in System.Drawing?
• With these events, why wouldn’t Microsoft combine Invalidate and Paint, so that you wouldn’t have to tell it to repaint, and then to force it to repaint?
• How can you assign an RGB color to a System.Drawing.Color object?
• What class does Icon derive from? Isn’t it just a Bitmap with a wrapper name around it?
• Before in my VB app I would just load the icons from DLL. How can I load the icons provided by .NET dynamically?
• When displaying fonts, what’s the difference between pixels, points and ems?
• What is the difference between VB 6 and VB.NET?
• What are the authentication methods in .NET?
• What is Serialization in .NET?
• What’s the use of System.Diagnostics.Process class?
• Difference Abstract class and Interface
• re-clarification of object based:
• How to achieve Polymorphism in VB.Net?
• Difference between Class And Interface
• What doesu mean by .NET framework?
• What is assembly?
• What is namespaces?
• NET framework overview
• What is the base class of .NET?
• Explain assemblies.
• Name some of the languages .NET support?
• ADO.NET features? Benefits? Drawbacks?
• How many types of exception handlers are there in .NET?
• Difference between Panel and GroupBox classes?
• What is the base class of Button control?
• What is Response object? How is it related to ASP’s Response object?
• What is IIS? Have you used it?
• Main differences between ASP and ASP.NET.
• What are the advantages and drawbacks of using ADO.NET?
• Why The JavaScript Validation Not Run on the Asp.Net Button But Run SuccessFully On The HTML Button
• what is the difference between user control an custom control? advantages/disadvantages?
• What’s the difference between Response.Write() andResponse.Output.Write()?
• What is the use of ErrorProvider Control?
• What is CLR?
• What is Delegate and what is it used for ?
• How is meant by DLL ?
• Which DLL translate XML to SQL in IIS?
• Can anyone tell me about Secure Socket Layer? How to make use of the technology?
• What is the Differnce Between Response.write & response.output.Write
• Which dll is required to translate XML to SQL in IIS ?
• What is an interface and what is an abstract class? Please, expand by examples of using both. Explain why.
• What is serialization, how it works in .NET?
• What should one do to make class serializable?
• What exactly is being serialized when you perform serialization?
• How does output caching work in ASP.NET?
• What is connection pooling and how do you make your application use it?
• What are different methods of session maintenance in ASP.NET?
• What is Viewstate?
• Can any object be stored in a Viewstate?
• What should you do to store an object in a Viewstate?
• Explain how Viewstate is being formed and how it’s stored on client.
• What do you know about ADO.NET’s objects and methods?
• Explain DataSet.AcceptChanges and DataAdapter.Update methods.
• When we go for html server controls and when we go for web server controls?
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