[问答题] 以Cisco 2600路由器为例，简述路由器有哪五种配置方式？

导叶封水不严密有何危害？ 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?（） [" Set the value of ServiceSecurityContext.Current.WindowsIdentity.ImpersonationLevel to TokenlmpersonationLevel.Impersonation"," Set the value of ServiceSecurityContext.Current.Windowsldentity.ImpersonationLevel to TokenlmpersonationLevel.Delegation"," Set the PrincipalPermissionAttribute on the service contract and update the binding attribute in the endpoint element of the configuration file to wsHttpBinding"," Set the PnncipalPermissionAttribute on the service contract and update the bindingConfiguration attribute in the endpoint element of the configuration file to wsHttpBinding"] 形式意义上的婚姻家庭法 某企业某种外购材料全年需要量为10000千克，预计每次订货费用为100元，单位储存费用为2元。试确定该企业的最佳采购批量及批数。   把文学创作当成一种科学活动，要求纯客观再现生活的文学思潮是（） ["现实主义","批判现实主义","自然主义","浪漫主义"] 以Cisco 2600路由器为例，简述路由器有哪五种配置方式？