DRAG DROP
You have a client application that consumes a Windows Communication Foundation (WCF) service. The service contains a class named RegistrationService. The RegistrationService class contains two methods named SubmitRegistration and GetRegistrations.
The service has the following requirements:
- The client application must call the SubmitRegistration method synchronously.
- The client application must call the GetRegistrations method asynchronously.
You need to complete the client-side code to call the WCF service.
Which six code segments should you use in sequence? (To answer, move the appropriate six code segments from the list of code segments to the answer area and arrange them in the correct order.)

A Windows Communication Foundation (WCF) service has the following contract.
[ServiceContract(Namespace="http://contoso.com")] public interface IShipping { [OperationContract] string DoWork(int id); }
This is one of several service contracts hosted by your application. All endpoints use SOAP
1.2 bindings with WS-Addressing 1.0. The System.ServiceModel.MessageLogging trace source in the system.diagnostics configuration section is configured with one listener.
You need to make sure that only the messages that are returned from the DoWork operation are logged.
Which XML segment should you add to the system.serviceModel/diagnostics/messageLogging/filters configuration element?

• A. <add xmlns:soap="http://www.w3.org/2003/05/soap-envelope"> //soap:Action[text() =
  'http://contoso.com/IShipping/DoWorkResponse']
  </add>
• B. <add xmlns:addr="http://www.w3.org/2005/08/addressing"> //addr:Action[text() =
  'http://contoso.com/IShipping/DoWorkResponse']
  </add>
• C. <add xmlns:soap="http://www.w3.org/2003/05/soap-envelope"> //soap:Action[text() =
  'http://contoso.com/IShipping/DoWork']
  </add>
• D. <add xmlns:addr="http://www.w3.org/2005/08/addressing"> //addr:Action[text() =
  'http://contoso.com/IShipping/DoWork']
  </add>

A Windows Communication Foundation (WCF) client and service share the following service contract interface.
[ServiceContract]
public interface IContosoService {
[OperationContract]
void SavePerson(Person person);
}
They also use the following binding.
NetTcpBinding binding new NetTcpBinding { TransactionFlow = true };
The client calls the service with the following code
using (TransactionScope ts = new TransactionScope(TransactionScopeOption.Required))
{ IContosoService client = factoryCreateChannelO;
client SavePerson(person);
ConsoleWriteLine(
TransactionCurrentTransactionlnformation.
Distributedldentifier);
tsCompleteO;
}
The service has the following implementation for SavePerson
public void IContosoService SavePerson(Person person)
{ person.Saveo;
ConsoleWriteLine(TransactionCurrentTransactionlnformation.
Distributedidentifier);
}
The distributed identifiers do not match on the client and the server
You need to ensure that the client and server enlist in the same distributed transaction
What should you do?

• A. Add the following attribute to the SavePerson operation on lContosoService [TransactionFlow(TransactionFlowOption Allowed)] Add the following attribute to the implementation of SavePerson. [OperationBehavior(TransactionScopeRequired true)]
• B. Add the following attributes to the SavePerson operation on IContosoService.
  [OperationBehavior(TransactionScopeRequired = true)]
  [TransactionFlow(TransactionFlowOption.
  Mandatory)]
• C. Add the following attribute to the SavePerson operation on lContosoSernce [OperationBehavior(TransactionScopeRequired true)] Md the following attribute to the implementation of SavePerson. ITransactionFlow(TransactionFlowOptionAllowed)]
• D. Add the following attributes to the SavePerson operation on lContosoService
  [TransactionFlow(TransactionFlowOption Mandatory)]
  [OperationBehavior(TransactionScopeRequired true)]

You develop a Windows Communication Foundation (WCF) service. You enable all performance counters and run multiple calls to the service.
The service must isolate session data for each user.
You need to monitor the instancing behavior used in the service.
Which performance counter should you monitor?

• A. ASP.NET State Service\State Server Sessions Active
• B. ServiceModelService 4.0.0.0\Instances
• C. ServiceModelService 4.0.0.0\Calls
• D. ASP.NET State Service\State Server Sessions Total

You are integrating a Windows Communication Foundation (WCF) service within an enterprise-wide Service
Oriented Architecture (SQA)
Your service has the following service contract.
[ServiceContract]
public class CreditCardConfirmationService { [OperationContracti public Boolean ConfirmCreditCard(string cc Number double orderAmount, nmt orderNumber) { )
)
You need to allow the code in the ConfirmCreditCard method to participate automatically in existing transactions. If there is no existing transaction, a new transaction must be created automatically.
What should you do?

• A. Add an [OperationBehavior(TransactionScopeRequired true)] attribute to the ConfirmCreditCard method.
• B. Inside the ConfirmCreditCard method, surround the code that must participate in the transaction with a using(new TransactionScopeO) block
• C. Add an [OperationBehavior(TransactionAutoComplete true)J attribute to the ConfirmCreditCard method.
• D. Inside the ConfirmCreditCard method, surround the code that must participate in the transaction with a using(new CommittableTransactionO) block.