In 450 BC, the plebs ______.A．had their own magistrateB．were allowed to marry the patricia

You are developing a Windows Communication Foundation (WCF) service that contains the following operation contract.[OperationContract]CustomerNames GetCustomerNames();The operation returns customer names. You need to develop a definition for the operation contract that produces XML with the following structure.Which code segment should you use？ （）。

A.

B.

C.

D.

You are developing a Windows Communication Foundation (WCF) service.You must record all available information for the first 1,000 messages processed, even if they are malformed.You need to configure the message logging section of the configuration file.Which configuration segment should you use？ （）

A.

B.

C.

D.

You are developing a Windows Communication Foundation (WCF) service that will be hosted in Microsoft Internet Services (IIS) 7.0.The service must be hosted in an IIS application named Info. You need to enable this service to be hosted in IIS by changing the web.config file.Witch XML segment should you add to the web.config file？（）

A.

B.

C.

D.

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.

You are developing a Windows Communication Foundation (WCF) service that will be hosted in Microsoft Internet Information Services (IIS) 7.0.The service must be hosted in an lIS application named Info. You need to enable this service to be hosted in llS by changing the web.config file.Which XML segment should you add to the web.config file？（）

A.

B.

C.

D.

You are developing a data contract for a Windows Communication Foundation (WCF) service. The data in the data contract must participate in round trips. Strict schema validity is not required. You need to ensure that the contract is forward-compatible and allows new data members to be added to it. Which interface should you implement in the data contract class？（）

A.ICommunicationObject

B.IExtension

C.IExtensibleObject

D.IExtensibleDataObject

You are developing a Windows Communication Foundation (WCF) service. You establish that the largest size of valid messages is 8,000 bytes. You notice that many malformed messages are being transmitted.Detailed information about whether each message is malformed must be logged.You need to ensure that this information is saved in XML format so that it can be easily analyzed.What should you add to the service configuration file？（）

A.

B.

C.

D.

You are developing a Windows Communication Foundation (WCF) service. Client applications require reliable sessions to access the service.Users report that they receive ServerTooBusyException errors when their client application tries to establish a session. You need to ensure that the service can handle a minimum of 30 client connection requests.Which ReliableSessionBindingElement property should you configure？（）

A. MaxRetryCount

B. MaxTransferWindowSize

C. MaxPendingChannels

D. InactivityTimeout

You are developing a Windows Communication Foundation (WCF) service. You enable logging in the configuration file.The opening tag is defined as follows.<messagelogging br="" logentiremessage="true"> logMalformedMessages="true"logMessagesAtServiceLevel="true"logMessagesAtTransportLevel="true"maxMessagesToLog="20">You need to ensure that logging is implemented so that only messages with SOAP headers are logged.What should you add to the filters element of the application configuration file？（）

A.

B.

C.

D.

n 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.