[单项选择]You are building a client for a Windows Communication Foundation (WCF) service. You need to create a proxy to consume this service. Which class should you use?（）
A. ChannelFactory
B. ServiceHost
C. ClientRuntime
D. CommunicationObject

[单项选择]You are building a client for a Windows Communication Foundation (WCF) service. You need to create a proxy to consume this service. Which class should you use?（）
A. ChannelFactory
B. ServiceHost
C. ClientRuntime
D. CommunicationObject

[单项选择]（） you have entered your new office building, you probably would like to refurnish it.
A. Now that
B. So that
C. For
D. Because

[单项选择] A client application calls a Windows Communication Foundation (WCF) service with a proxy class that was generated by Visual Studio.The service binding was changed from wsHttpBinding to basicHttpBinding. The method signatures in the service contract are changed.After these changes, the client application receives errors when calling methods on the service.You need to ensure that the client can invoke methods on the service successfully. What should you do?（）
A. Update the configuration file to use basicHttpBinding.
B. Enable anonymous authentication for the service.
C. Copy the configuration file elements under the element from the service back to the client.
D. Update the service reference.

[单项选择]Your company has client computers that run Windows 7 and client computers that run Windows XP Professional. You enable the Network Discovery feature on the Windows 7 computers. You discover that the Windows XP computers do not appear on the network map. You need to ensure that all client computers appear on the network map. What should you do?（）
A. Configure the IPv6 protocol on the Windows 7 computers.
B. Configure the network shares on the Windows 7 computers to include the user names of all employees.
C. Configure the network shares on the Windows XP computers to include the user names of all employees.
D. Install the Link Layer Topology Discovery (LLTD) Responder on the Windows XP computers.

[单项选择]Which of the following statements about communication by touch is true
A. Touch is not important as a means of communication.
B. There is no well-developed system of communication based on touch.
C. It is possible to communicate intelligently by touch alone.
D. Touch must accompany visual communication.

[判断题]The most obvious characteristics of the Communicative Approach is that almost everything that is done is done with a communicative intent.（）

[单项选择] A Windows Communication Foundation (WCF) client uses the following service contract.(Line numbers are included for reference only.) 01 [ServiceContract] 02 public interface IService 03 { 04 [OperationContract] 05 string Operation1（　）; 06 [OperationContract] 07 string Operation2（　）; 08 } You need to ensure that all calls to Operation1 and Operation2 from the client are encrypted and signed. What should you do?（）
A. Set the ProtectionLevel property in line 01 to EncryptAndSign.
B. Set the ProtectionLevel property in line 04 and line 06 to Sign.
C. Add a SecurityCriticalAttribute ror each operation.
D. Add a SecunitySafeCriticalAttribute for each operation.

[多项选择]Which two statements are true about TCP communication?（）
A. The receiver acknowledges the final packet in each communications stream.
B. The receiver adds sequencing numbers to the packets received.
C. The sender adds sequencing numbers to the packets it sends.
D. The receiver acknowledges each packet it receives from the sending device.

[单项选择] All client computers in your company run Windows 7. Windows Virtual PC is installed on all client computers. You create and configure a virtual machine (VM) named Guest1. You need to use the Guest1 virtual hard disk (VHD) as a base for additional VMs that will run on the same host computer, and minimize the disk space required for each new VM. Which type of VHD should you create for the new VMs? （）
A. fixed size
B. differencing
C. dynamically expanding
D. linked to a physical hard disk