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You are developing a Windows Communication Foundation (WCF) service. The service needs to access out-of-process resources.You need to ensure that the service accesses these resources on behalf of the originating caller. What should you do?()

A. Set the value of ServiceSecurityContext.Current.WindowsIdentity.ImpersonationLevel to TokenlmpersonationLevel.Impersonation
B. Set the value of ServiceSecurityContext.Current.Windowsldentity.ImpersonationLevel to TokenlmpersonationLevel.Delegation
C. Set the PrincipalPermissionAttribute on the service contract and update the binding attribute in the endpoint element of the configuration file to wsHttpBinding
D. Set the PnncipalPermissionAttribute on the service contract and update the bindingConfiguration attribute in the endpoint element of the configuration file to wsHttpBinding

成活期养护

网络客户服务的优势包括()

A. 提高客户服务成本
B. 提高客户服务效率
C. 提供更高层次的服务
D. 促进服务手段的多样化

基层武装部基本设施配套要求有办公室、有资料室(柜),工作职责、相关工作制度和图表上墙悬挂。办公电脑专机专用,安装保密系统,与国际互联网和地方政府网物理隔离。应急分队防爆、抢险救灾物资器材和服装配备到位,摆放整齐,标识统一。战备方(预)案、民兵整组、征兵工作、教育训练、潜力调查、人员名册等资料完善,分类存放,管理规范。

A. 正确
B. 错误

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