Be familiar with the techniques of deploying XML Web services. Make sure that you can create a setup program and a discovery document.
Know how to publish Web services. You should know the schema and the meaning behind it in order to publish your Web service to a UDDI registry. You should also be able to configure static and dynamic discovery.
Know how to authenticate requests by using Windows and ASP.NET authentication. Make sure that you can create custom SOAP headers to pass credentials to an XML Web service to be authenticated.
Be able to grant or deny access to XML Web services by using both file- and URL-based authorization. Know how to restrict access to individual services and folders, as well as which verbs are allowed to be used by whom.