[单选] A Windows Communication Foundation (WCF) service interacts with the database of a workflow engine. Data access authorization is managed by the database, which raises security exceptions if a user is unauthorized to access it.You need to ensure that the application transmits the exceptions raised by the database to the client that is calling the service.Which behavior should you configure and apply to the service?（）

Certkiller.COM有两个Active Directory命名CertKiller.com和vervoks.com的森林。公司网络有三个名为Certkiller甲，Certkiller乙，和Certkiller C. DNS服务器，DNS服务器的配置，如图表所示。  属于vervoks.com域的所有计算机Certkiller彗星作为首选的DNS服务器配置。所有其他计算机上使用，作为首选的DNS服务器Certkiller。从acme.com域的用户无法连接到服务器，属于Certkiller.com域的。 您需要确保在acme.com域的用户都能够解决所有Certkiller.COM查询。来实现这个任务，你应该怎么做呢（） 创建一个副本Certkiller c服务器_msdcs.CertKiller.com区。。 配置上Certkiller甲和Certkiller乙条件转发，转发vervoks.com查询到Certkiller c。。 Certkiller彗星配置条件转发转发Certkiller COM查询Certkiller a。。 创建一个Certkiller服务器和Certkiller b服务器上的vervoks.com区域的副本。。 重复言语 安全生产教育主要内容有哪些？ （）是基本建设项目投资最高限额。 招标标底。 可行性研究报告投资估算。 批准的设计概算。 批准的预算。 You work as an application developer at Certkiller .com. Certkiller .com wants you to develop an application that stores and retrieves client information by means of a unique account number.You create a custom collection class， which implements the IDictionary interface，named ClientDictionary. The following code have been included into the new application. //Create Client objects Client c1 = new Client （"AReid"， "Andy Reid"， Status.Current）； Client c2 = new Client （"DAustin"， "Dean Austin"， Status.New）； //Create ClientDictionary object IDictionary cData = new ClientDictionary （）； cData.Add （"10001"， c1）； cData.Add （"10002"， c2）； You use the same method to add other Client objects to the collection. You need to ensure that you are able to retrieve client information associated with the account number 10111.What should you do？（）  Use the following code： Client foundClient；foundClient = （Client） cData.Find （"10111"）； 。  Use the following code： Client foundClient；if （cData.Contains （"10111"）） foundClient = cData ["10111"]； 。  Use the following code： Client foundClient；if （cData.Contains （"10111"））foundClient =（Client） cData ["10111"]； 。  Use the following code： Client foundClient；foreach （string key in cData.Keys {if （key == "10111"）foundClient = （Client） cData.Values ["10111"]； }。 A Windows Communication Foundation (WCF) service interacts with the database of a workflow engine. Data access authorization is managed by the database, which raises security exceptions if a user is unauthorized to access it.You need to ensure that the application transmits the exceptions raised by the database to the client that is calling the service.Which behavior should you configure and apply to the service?（）