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AWindowsCommunicationFoundation(WCF)serviceinteractswiththedatabaseofaworkflowengine.Dataaccessauthorizationismanagedbythedatabase,whichraisessecurityexceptionsifauserisunauthorizedtoaccessit.Youneedtoensurethattheapplicationtransmitstheexceptionsraisedbythedatabasetotheclientthatiscallingtheservice.Whichbehaviorshouldyouconfigureandapplytotheservice?（）

A. routing
B. serviceDebug
C. serviceSecurityAudit
D. workflowUnhandledException

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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？（）

A. Use the following code： Client foundClient；foundClient = （Client） cData.Find （"10111"）；
B. Use the following code： Client foundClient；if （cData.Contains （"10111"）） foundClient = cData ["10111"]；
C. Use the following code： Client foundClient；if （cData.Contains （"10111"））foundClient =（Client） cData ["10111"]；
D. Use the following code： Client foundClient；foreach （string key in cData.Keys {if （key == "10111"）foundClient = （Client） cData.Values ["10111"]； }

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某债券的面值1000元，10年后一次性还本付息。一投资者购进时价格为968元，持有两年半后将其卖出，售价l186元，试计算其持有期收益率为（）

A. 8.5%
B. 7.4%
C. 6.8%
D. 9%

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Refer to the exhibit. On the basis of the output generated by the show commands， which twostatements are true？（）

All interfaces on the switch have been configured as access ports
Because it has not been assigned to any VLAN， interface gigabitethernet 0/1 does not appearin the show vlan output
C. Because it is configured as a trunk interface， interface gigabitethernet 0/1 does not appear inthe show vlan output
D. There are no native VLANs configured on the trunk
E. VLAN 1 will not be encapsulated with an 802.1q header
F. VLAN 2 will not be encapsulated with an 802.1q header

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Certkiller。COM称为Certkiller.COM Active Directory域。如图表所示，两个名为Certkiller一个Certkiller B. DNS服务器的DNS服务器配置。域用户无法连接到互联网网站，使用Certkiller乙，因为它是作为首选DNS服务器配置。你必须让所有客户端计算机的Internet名称解析。来实现这个任务，你应该怎么做呢（）

A. 删除从Certkiller b.（根）区域配置上Certkiller b的条件转发
B. 更新Cache.dns文件上Certkillerb. Certkillerb配置条件转发
C. 创建一个Certkiller答复制（根）区
D. 根提示服务器上Certkiller b.的更新列表

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A. routing B. serviceDebug C. serviceSecurityAudit D. workflowUnhandledException

某债券的面值1000元，10年后一次性还本付息。一投资者购进时价格为968元，持有两年半后将其卖出，售价l186元，试计算其持有期收益率为（）

Refer to the exhibit. On the basis of the output generated by the show commands， which twostatements are true？（）

A. routing
B. serviceDebug
C. serviceSecurityAudit
D. workflowUnhandledException