INTERVIEW QUESTIONS MICROSOFT DOTNET DETAILS

Question: Can you give an example of when it would be appropriate to use a web service as opposed to a non-serviced .NET component

Answer: A web service has the following characteristics:

1. It communicates using open protocols like HTTP
2. Processes XML messages framed using SOAP
3. May be described using WSDL
4. Can be discovered using UDDI

Any application which is supposed to reach a wide customer base should be written as a web service, as opposed to customized applications for specific customers.

For example, services which help in stock trading by providing analysis of market trends could best be implemented as a web service. The reasons are

1. Such a web service would be easily discovered by potential customers when they need it.
2. It will require minimal setup on the client machines
3. The updates to the system will be automatically available to all its consumers, without any need to deploy the updates on their machines.

A web service has the following characteristics:

1. It communicates using open protocols like HTTP
2. Processes XML messages framed using SOAP
3. May be described using WSDL
4. Can be discovered using UDDI

Any application which is supposed to reach a wide customer base should be written as a web service, as opposed to customized applications for specific customers.

For example, services which help in stock trading by providing analysis of market trends could best be implemented as a web service. The reasons are

1. Such a web service would be easily discovered by potential customers when they need it.
2. It will require minimal setup on the client machines
3. The updates to the system will be automatically available to all its consumers, without any need to deploy the updates on their machines. Source: CoolInterview.com

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