[问答题] 简述令牌环的原理。

他伤与自伤的主要鉴别点在于：（） ["损伤零乱，方向不一","轻伤多，重伤少","常有犹豫创","常有对抗伤","可发生在任何部位"] 十二铜表法 Certkiller。COM已经在另一个城市的一个主要办公室和分支机构。你被分配到部署和实施一个只读域控制器（RODC）的分支机构。您可以部署RODC上运行Windows Server 2008。你应该怎么做，以确保在分支机构的用户可以登录到域使用RODC的呢（） ["使用RODC上的密码复制策略","添加RODC的主要办公室","部署和配置一个新的桥头服务器在分支机构","部署和配置在主办公室的一个RODC上的密码复制策略"] A Windows Communication Foundation (WCF) client and service share the following service contract interface: [ServiceContract] public interface IContosoService { [OperationContract] void SavePerson(Person person); } They also use the following binding: NetTcpBinding binding = new NetTcpBinding() { TransactionFlow = true }; The client calls the service with the following code: using (TransactionScope ts = new TransactionScope(TransactionScopeOption.Required)) { IContosoService client = factory.CreateChannel(); client.SavePerson(person); Console.WriteLine(Transaction.Current.TransactionInformation.DistributedIdentifier); ts.Complete(); } The service has the following implementation for SavePerson: public void IContosoService.SavePerson(Person person) { person.Save(); Console.WriteLine(Transaction.Current.TransactionInformation.DistributedIdentifier); } The distributed identifiers do not match on the client and the server. You need to ensure that the client and server enlist in the same distributed transaction. What should you do?（） ["","","",""] 按照法律规定，企业安全生产风险抵押金该如何使用？ 简述令牌环的原理。