An existing Windows Communication Foundation (WCF) service uses basicHttpBinding. You are releasing updates to the service and the client application.
You need to enable the client application to flow transactions to the service.
What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

• A. Change the binding to use basicHttpContextBinding.
• B. Change the binding to use wsHttpBinding.
• C. Change to a custom binding that has the httpTransport, textMessageEndcoding, and transactionFlow binding elements in this order.
• D. Change to a custom binding that has the transactionFlow, textMessageEncoding, and httpTransport binding elements in this order.

You are developing a Windows Communication Foundation (WCF) service. You enable logging in the configuration file.
The opening tag is defined as follows.

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. Option A
• B. Option B
• C. Option C
• D. Option D

A Windows Communication Foundation (WCF) solution uses the following contract to share a message across its clients. (Line numbers are included for reference only.)
01 <ServiceContract()> 02 Public Interface ITeamMessageService 03 04 <OperationContract()> 05 Function GetMessage() As String 06 07 <OperationContract()> 08 Sub PutMessage(ByVal message As String) 09 End Interface The code for the service class is as follows.
10 Public Class TeamMessageService 11 Implements ITeamMessageService 12 13 Dim key As Guid = Guid.NewGuid() 14 Dim message As String = "Today s Message" 15 16 Public Function GetMessage() As String _ 17 Implements ITeamMessageService.GetMessage 18 19 Return String.Format("Message:{0}. Key:{1}", message, key) 20 End Function 21 22 Public Sub PutMessage(ByVal message As String) _ 23 Implements ITeamMessageService.PutMessage 24 25 Me.message = message 26 End Sub 27 28 End Class
The service is self-hosted. The hosting code is as follows.
29 Dim host As ServiceHost = New ServiceHost(GetType(TeamMessageService)) 30 Dim binding As BasicHttpBinding = New BasicHttpBinding(BasicHttpSecurityMode.None)
31 host.AddServiceEndpoint(
"MyApplication.ITeamMessageService", binding,
"http://localhost:12345")
32 host.Open()
You need to ensure that all clients calling GetMessage will retrieve the updated string if the message is updated by any client calling PutMessage.
What should you do?

• A. Redefine the message string in line 14, as follows.
  Shared message As String = "Today s Message"
• B. Pass a service instance to the instancing code in line 29, as follows.
  Dim host As ServiceHost = New ServiceHost(New TeamMessageService())
• C. Then change the implementation of PutMessage in lines 22-26 to the following.
  Public Sub PutMessage(ByVal message As String) _
  Implements ITeamMessageService.PutMessage
  TeamMessageService.message = message
  End Sub
• D. Add the following attribute to the TeamMessageService class, before line 10.
  <ServiceBehavior(InstanceContextMode:=InstanceContextMode.Single)>
• E. Add the following attribute to the TeamMessageService class, before line 10002E
  <ServiceBehavior(InstanceContextMode:=
  InstanceContextMode.PerSession)>

You develop a Windows Communication Foundation (WCF) service that interacts with Microsoft Message Queuing (MSMQ).
The service requires sessions. You need to create a custom binding that enables messages sent to the queue to be viewed when you are using a listener tool.
Which binding elements should you use?

• A. textMessageEncoding and msmqTransport in this order
• B. msmqIntegrationTransport and textMessageEncoding in this order
• C. textMessageEncoding and msmqIntegrationTransport in this order
• D. msmqTransport and textMessageEncoding in this order

A Windows Communication Formation (WCF) client and service share the following service contract interface
<ServiceContractO>
Public Interface IContosoService <OperationContractO>
Sub SasePerson(BWal person As Person) End Interface They also use the following
binding.
Dim binding As NetTcpBinding = New NetTcpBinding With {TransactionFlow = True) The
client cals the service with the (following code using (mransactionScope ts = new
TransactionScope(TransactionScopeOption
Required))
{
IContosoService client = factoryCreateChannelO;
client SavePerson(person);
Consde. WriteLine(
Transaction. CurreriTransactioninformation
DistnbutedldentifierX
ts CorrpleteO;
)
The service has the following impementation for SavePerson
Public Sub SavePerson(ByVal person As Perwn) - implements IContosoService
SavePerson person Save()
ConsdeWriteLine(Transaction .Current Transactionlnformaiona
Distributedldentifier)
End Sit
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 attributes to the SavePerson operation on lContosoService
  eOperationBehavior(TransactionSc opeRequired =True)>
  <TransactionFlow(TransactionFbwOption Madatory)>
• B. Add the following attribute to the SavePerson operation on KContosoService.
  <OperationBehavior(TransachonSc opeRequired True)>
  Add the following attribute to the implementation of SavePeson.
  <TransactionFlow(TransactionFbwOption
  Allowed)>
• C. Add the following attribute to the SavePerson operation on KOontosoService.
  <TransactionFlow(TransactionFbwOption Allowed)>
  Add the following attribute to the implementation of SavePeson.
  eOperationBehavior(TransactionSc
  opeRequired True)>
• D. Add the following attributes to the SavePerson operation on IContosoSewvice
  <TransactionFlow(TransactionFbwOption Maidatory)>
  eOperationBehavior(TransactionSc opeRequired zTrue)>