多项选择题
A.
B.
C.
D.Require the clients to use async operations when calling the service.
单项选择题 AWindowsCommunicationFoundation(WCF)serviceexposestwooperations:OpAandOpB.OpAneedstoexecuteundertheclient’sidentity,andOpBneedstoexecuteundertheservice’sidentity.Youneedtoconfiguretheservicetoruntheoperationsunderthecorrectidentity.Whatshouldyoudo?()
单项选择题 YouarecreatingaWindowsCommunicationFoundation(WCF)servicethatimplementsthefollowingservicecontract.PublicInterfaceIOrderProcessingSubApproveOrder(ByValidAsInteger)Forinteractiveandself-pacedpreparationofexam70-513,tryourpracticeexams.Practiceexamsalsoincludeselfassessmentandreportingfeatures!EndInterfaceYouneedtoensurethatonlyuserswiththeManagerrolecancalltheApproveOrdermethod.Whatshouldyoudo?()</servicecontract()
单项选择题 YouarecreatingaWindowsCommunicationFoundation(WCF)servicethatacceptsmessagesfromclientswhentheyarestarted.Themessageisdefinedasfollows.[MessageContract]publicclassAgent{publicstringCodeName{get;set;}publicstringSecretHandshake{get;set;}}Youhavethefollowingrequirements:"TheCodeNamepropertymustbesentincleartext.Theservicemustbeabletoverifythatthepropertyvaluewasnotchangedafterbeingsentbytheclient."TheSecretHandshakepropertymustnotbesentincleartextandmustbereadablebytheservice.Whatshouldyoudo?()