依据水利工程招标投标有关规定，潜在投标人依据踏勘项目现场及招标人介绍情况做出的判断和决策，由

th 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

A.FieldInfoclass

B.MethodInfoclass

C.Assemblyclass

D.Typeclass

ation (WCF) services.The services have ASP.NET Compatibility Mode enabled. Users authenticate with the Web application by using a cookie-based ASP.NET Forms Authentication model.You add a service file named Authentication.svc that contains the following code segment:<%@ ServiceHost Service="System.Web.ApplicationServices.AuthenticationService"Factory="System.Web.ApplicationServices.ApplicationServicesHostFactory" %>You need to ensure that users can access the WCF services without having to re-authenticate.Which two configuration settings should you add? (Each is part of a complete solution. Choose two.)（）

A. In the system web. Extensions scripting/webServices/authenticationService element, set the enabled attribute to true.

B. In the system web. Extensions scripting/webServices/profileService element, set the enabled attribute to true.

C. Add a service endpoint with basicHttpBinding for the contract System.Web.ApplicationServices.AuthenticationService.

D. Add a custom service behavior named AuthenticationService Type Behaviors with a service AuthenticationManager element that has service AuthenticationManagerType set to System.Web.Security.SQL Membership Provider

A.AddareferencetothecomponentthroudhMicrosoftVisualStudio2005.

B.UsethetypeLibraryImporttool（TlbImport.exe）.

C.UsetheRegsvr32tool.

D.Ensurethettheapplicationisregistered，usingtheRegSvrtoolifnecessary.TheneitheraddareferencetoitfromdialogboxoruseTblIpm.exe.

A.AddthefollowingcontrolbeforetheUpdatePanel.

B.AddthefollowingcontrolwithintheUpdatePanel.

C.AddanAsyncPostBackTriggerthatreferencesTimer1.

D.AddaPostBackTriggerthatreferencesTimer1.

Certkiller.com 已经被本地小私立学校聘请开发一类库，将在名为ManageAttendance的 学生档案管理应用程序中使用，ManageAttendance 名学生档案您应负责此类库的开发。Certkiller.com 已指示您在应用程序中创建集合以存储学习的结果目前仅有七个学生，但此值将增加两倍，在下一年度，学校已通知您。由于对有限的资源，您需要确保您所创建的集合消耗最少的资源。创建集合，您应该使用什么？（）

A.HybridDictionary 的集合类

B.哈希表集合类

C.ListDictionary 的集合类

D.StringCollection 的集合类

re the service to provide an X509 certificate during authentication. What should you use to configure the service?（）

A. the Certificate property of the X509 Certificate lnitiator Service Credential class

B. the SetCertificate method of the X509 Certificate Initiator Service Credential class

C. the SetCertificate method of the X509 Certificate Recipient Service Credential class

D. the TrustedStoreLocation property of the X509 Certificate Recipient Service Credential class

New audit requirements dictate that callers must be authenticated on every call to ensure that their credentials have not been revoked.You need to ensure that the service will not cache the security request token. What should you do?（）

A. Apply a ServiceBehavior attribute to the service implementation class with the lnstanceContextMode property set to Single.

B. In the message security configuration, change clientCredentialType from lssuedToken to UserName

C. In the message security configuration, set establishSecurityContext to false.

D. At the end of every operation, call the SessionStateUtility.RaiseSessionEnd method.