Question:The extensibility of Web services through the .NET Framework and ASP.NET Web Services contributes to the power and dynamic nature of Web services. Which of the following are correct with regard to the extensibility of Web services? 

A SOAP extensions enable developers to modify the request or response streams of SOAP messages 

B SOAP extensions are applied to a particular operation with a custom SOAP extension attribute, or registered with the application (or machine) configuration file 

C Description formatters can be created to add custom WSDL extensions, and then read to add these SOAP extension attributes 

D HTTP modules and custom Web requests can be used only for a lower level extensibility 

E The Web Services Management for Microsoft .NET (WSM) can enhance .NET Web Services for various Web service protocols that extend beyond the baseline, such as WS-Attachments and WS-Security 

F All of these 

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