题目内容

A self-hosted Windows Communication Foundation (WCF) service uses a secure HTTP binding with a custom principal permission mode. The binding requires users to provide their Windows logon credentials. You need to retrieve the identity of the caller.What are two possible properties you can use to achieve this goal? (Each correct answer presents a complete solution Choose two)（）

A. Thread.CurrentPrincipal.Identity.Name
B. HttpContext.Current.User.Identity.Name
C. ServiceSecurityContext.Current.PrimaryIdentity.Name
D. OperationContext.Current.ServiceSecurityContext.PrimaryIdentity.Name

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A. Thread.CurrentPrincipal.Identity.Name B. HttpContext.Current.User.Identity.Name C. ServiceSecurityContext.Current.PrimaryIdentity.Name D. OperationContext.Current.ServiceSecurityContext.PrimaryIdentity.Name

Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 （SP2）.You have a DHCP server that has 10 scopes.You need to add a DNS server to all 10 scopes by using the minimum amount of administrative effort. What should you do？（）

A. Thread.CurrentPrincipal.Identity.Name
B. HttpContext.Current.User.Identity.Name
C. ServiceSecurityContext.Current.PrimaryIdentity.Name
D. OperationContext.Current.ServiceSecurityContext.PrimaryIdentity.Name