A Windows Communication Foundation (WCF) solution uses two services to manage a shopping cart. Service
A processes messages containing line items that total between $0 and $500. Service B processes messages containing line items that total more than $500.
All messages are of equal importance to the business logic.
You need to route incoming messages to the appropriate services by using WCF routing.
Which two message filters should you add to the router? (Each correct answer presents part of the solution. Choose two.)

• A. a message filter with a priority of 100 that will forward all messages to Service B
• B. a message filter with a priority of 0 that will forward messages that total between $0 and $500 to Service A
• C. a message filter with a priority of 0 that will forward all messages to Service B
• D. a message filter with a priority of 100 that will forward messages that total between $0 and $500 to Service A

A Windows Communication Foundation (WCF) service only accepts messages that are signed and encrypted.
A client application is not receiving expected responses from the service.
You need to enable logging to verify that the messages from the client are signed and encrypted. You also need to see what each message looks like before the message body is deserialized into a .NET object.
What should you do?

• A. Configure the System.ServiceModel trace source in the system.diagnostics
  configuration section. In the system.serviceModel configuration, add the following XML
  segment.
  <diagnostics>
  <messageLogging logEntireMessage="true" logMessagesAtServiceLevel="true" /> </diagnostics>
• B. Configure the System.ServiceModel trace source in the system.diagnostics
  configuration section. In the system.serviceModel configuration, add the following XML
  segment.
  <diagnostics>
  <messageLogging
  logEntireMessage="true"
  logMessagesAtServiceLevel="true"
  logMessagesAtTransportLevel="true" />
  </diagnostics>
• C. Configure the System.ServiceModel.MessageLogging trace source in the
  system.diagnostics configuration section. In the system.serviceModel configuration, add
  the following XML segment.
  <diagnostics>
  <messageLogging
  logMessagesAtServiceLevel="true"
  logMessagesAtTransportLevel="true" />
  </diagnostics>
• D. Configure the System.ServiceModel.MessageLogging trace source in the
  system.diagnostics configuration section. In the system.serviceModel configuration, add
  the following XML segment.
  <diagnostics>
  <messageLogging
  logEntireMessage="true"
  logMessagesAtServiceLevel="true"
  logMessagesAtTransportLevel="true" />
  </diagnostics>

You are developing a new version of an existing message contract named CustomerDetailsVersion1.
The new version of the message contract must add a Department field of type String to the SOAP header.
You create a new class named CustomerDetailsVersion2 that inherits from CustomerDetailsVersion1.
You need to ensure that all client applications can consume the service.
Which code segment should you use?

• A. <MessageContract()> Public Class CustomerDetailsVersion2 Inherits CustomerDetailsVersionl <MessageHeader(HustUnderstand:=True)> Public Department As String End Class
• B. Public Class CustomerDetailsVersion2 Inherits CustomerDetailsVersionl <MessageHeader(HustUnderstand:=False) > Public Department As String End Class
• C. <MessageContract() > Public Class CustomerDetailsVersion2 Inherits CustomerDetailsVersionl <MessageHeader(HustUnderstand:=False)> Public Department As String End Class
• D. Public Class CustomerDetailsVersion2 Inherits CustomerDetailsVersionl <MessageHeader(HustUnderstond:"True)> Public Department As String End Class
• E. Public Class CustomerDetailsVersion2 Inherits CustomerDetailsVersionl <MessageHeader(MustUnderstand:=True)> Public Department As String End Class

The following is an example of a SOAP envelope.
<s:Enelope xmlns:se'http://schemas.xmlsoporg/soap/envelopef'>
<s: Header> <h:Storeld xmlns:he"http:/!www.contoso.com"s
<Ih: Storeld>
</s:Header>
<s:Body>
<CheckStockRequest xmlnsehttp://wwwcorIosocom">
<ltemld>2469 <Iltenld>4
</CheckStoc kRequest>
<Is: Body>
<Is: Envelope>
You need to create a message contract that generates the SOAP envelope.
1 which code segment should you use?

• A. [MessageContract(WrapperNamespace="http://www. contosocom")] pi+-lic class
  CheckStockRequest
  {
  [MessageHeader(Na-mespacesttp://wwwcontoso. comn")]
  public mnt Storeld{get set.}
  public mnt ltemld{get: set;}
  )
• B. (MessageContract(WrapperNamespace="httpJ/www. contoso.com")] public class
  CheckStockRequest
  {
  [MessageHeader(Namespace11tp:IIwww. contoso. comn")]
  public int Storeld{get set;}
  (MessageBodyMember]
  public int ltemmld(get set}
  }
• C. [MessageContract(WrapperName="http:I/www. contoso. comn")]
  public class CheckStockRequest {
  [MessageHeader(Nanez"http:llwww.contoso.com")] public mnt Storeld{get; set.}
  [MessageBodyMember(Namee'intp://www..contoso.com")] public nit itemld{get set;)
  }
• D. [MessageContract(WrapperNamespace="http:I/www.contoso.comn")] public class
  CheckStoc kRequest
  {
  [MessageHeader(Namespaces"http:I/www.contosocom")]o
  public nmt Storeld{get; set;)
  [MessageBodyMember(Namespaces"http://www. contoso . comn")]
  public nmt ltemld{get; set;}
  }

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. <ServiceContract()>
  Public Interface IService
  <OperationContract()>
  Function GetCustomerInformation(
  ByVal header As Header,
  ByVal customerNumber As Integer)
  As CustomerInformation
  End Interface
  <DataContract()>
  Public Class CustomerInformation
  End Class
  <MessageContract()>
  Public Class Header
  <MessageHeader()>
  Public SecurityTag As String
  End Class
• B. <ServiceContract()> Public Interface IService <OperationContract()> Function GetCustomerInformation( ByVal request As CustomerNumber) As CustomerInformation End Interface <MessageContract()> Public Class CustomerInformation End Class <MessageContract()> Public Class CustomerNumber <MessageHeader()> Public SecurityTag As String <MessageBodyMember()> Public CustomerNumberElement As Integer End Class
• C. <ServiceContract()>
  Public Interface IService
  <OperationContract()>
  Function GetCustomerInformation(
  ByVal header As Header, ByVal customerNumber As Integer) As CustomerInformation End Interface <MessageContract()> Public Class CustomerInformation End Class <MessageContract()> Public Class Header <MessageHeader()> Public SecurityTag As String End Class
• D. <ServiceContract()> Public Interface IService <OperationContract()> Function GetCustomerInformation( ByVal request As CustomerNumber) As CustomerInformation End Interface <DataContract()> Public Class CustomerInformation End Class <MessageContract()> Public Class CustomerNumber <MessageHeader()> Public SecurityTag As String <MessageBodyMember()> Public CustomerNumberElement As Integer End Class