On the OperationContractAttribute， set the AsyncPattern property value to True.
On the OperationContractAttribute， set the ReplyAction property value to the endpoint address of the client. For interactive and self-paced preparation of exam 70-513， try our practice exams. Practice exams also include self assessment and reporting features!
On the client， create a proxy derived from DuplexClientBase（Of TChannel）.
On the client， use GetCallbackChannel（Of T）.
第1题：
You are developing an application that performs file backups in the background. The background application will host a Windows Communication Foundation (WCF) service and must be active as soon as the machine is running. The background application will not have a user interface. A front-end application will consume the WCF service and will provide the user interface.You need to choose a host environment for the WCF service.Which hosting environment should you choose? （）
A. Microsoft Internet Information Services (IIS) 6.0
B. Windows Process Activation Services (WAS)
C. A Windows Forms application
D. A Windows Service
第2题：
You are developing a Windows Communication Foundation (WCF) service. The service operation takes a customer number as the only argument and returns information about the customer. The service requires a security token in the header of the message. You need to create a message contract for the service.Which code segment should you use?（）
A.
B.
C.
D.
第3题：
You develop a Windows Communication Foundation (WCF) service. You name the service MovieService in the Movie namespace. The service is hosted in Microsoft Internet Information Services (IIS). You copy the assembly containing the service to the bin folder in the virtual directory path.You need to set up the URI that is mapped to the service.What should you do?（）
A.
B.
C.
D.
第4题：
A. NetTcpContextBinding
B. BasicHttpContextBinding
C. NetTcpBinding
D. NetMsmqBinding
第5题：
A Windows Communication Foundation (WCF) service is required to log all authorization attempts to the Windows Event Log. You need to configure a behavior and apply it to the service to support this requirement. Which behavior should you configure and apply?（）
A. service Authentication Manager
B. service Authorization
C. service Credentials
D. service Security Audit
第6题：
You are developing a Windows Communication Foundation (WCF) service. The service configuration file has a element defined. You need to ensure that all security audit information, trace logging, and message logging failures are recorded.Which configuration segment should you add to the element?（）
A.
B.
C.
D.
第7题：
You are maintaining a Windows Communication Foundation (WCF) service that uses a custom username password class to authenticate clients with. The service certificate is hosted in the deployment server store for trusted root certificate authorities and has a Subject value of TaxServiceKey. Other service certificates hosted on the same server also use TaxServiceKey as a Subject value.You need to ensure that the service identifies itself with a certificate whose subject name and distinguished names are TaxServiceKey.Which code segment should you use?（）
A.
B.
C.
D.
第8题：
You are developing a Windows Service. The Windows Service will host a Windows Communication Foundation (WCF) service.The Windows Service class will inherit from ServiceBase.You need to ensure that the WCF service starts when the Windows Service is restarted.What should you do in the Windows Service class?（）
A.
B.
C.
D.
第9题：
A. AnnouncementService
B. AnnouncementClient
C. DiscoveryClient
D. HttpListener
第10题：
Windows Communication Foundation (WCF) service is self-hosted in a console application. The service implements the lTimeService service interface in the TimeService class.You need to configure the service endpoint for HTTP communication. How should you define the service and endpoint tags?（）
A.
B.
C.
D.