Microsoft 70-513 Exam : TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4

A Windows Communication Foundation (WCF) application uses the following data contract.

You need to ensure that the following XML segment is generated when the data contract is serialized.

Which code segment should you use?

• A. [DataMember]
  public string firstName;
  [DataMember]
  public string lastName;
  [DataMember(EmitDefaultValue = true)]
  public int age = 0 ;
  [DataMember(EmitDefaultValue = true)]
  public int ID = 999999999;
• B. [DataMember(EmitDefaultValue = false)]
  public string firstName = null;
  [DataMember(EmitDefaultValue = false)]
  public string lastName = null;
  [DataMember(EmitDefaultValue = true)]
  public int age = -1;
  [DataMember(EmitDefaultValue = false)] public int ID = 999999999;
• C. [DataMember(EmitDefaultValue = true)]
  public string firstName;
  [DataMember(EmitDefaultValue = true)]
  public string lastName;
  [DataMember(EmitDefaultValue = false)]
  public int age = -1;
  [DataMember(EmitDefaultValue = false)]
  public int ID = 999999999;
• D. [DataMember]
  public string firstName = null;
  [DataMember] public string lastName = null;
  [DataMember(EmitDefaultValue = false)] public int age = 0;
  [DataMember(EmitDefaultValue = false)]
  public int ID = 999999999;

You are developing a Windows Communication Foundation (WCF) service. One of the parameters used with the service operations is a security token. The security token is not sensitive. The monitoring software tracks security tokens and can read tokens in clear text only.
The company security policy requires that you validate all clear text data passed over the corporate network.
You need to ensure that the service verifies that the security token is not changed during transit.
What should you do?

• A. Implement ISecureConversationSession in the message contract class.
• B. For all the security-sensitive members, set the ProtectionLevel parameter of the MessageBodyMember or MessageHeader attribute to EncryptAndSign.
• C. For all the security-sensitive members, set the ProtectionLevel parameter of the MessageBodyMember or MessageHeader attribute to Sign.
• D. Implement IEndpointldentityProvider in the message contract class.

You have an existing Windows Communication Foundation (WCF) service that exposes a service contract over HTTP using explicit binding configuration.
You need to expose that contract over HTTP and TCP.
What should you do?

• A. Add an endpoint behavior named netTcpBehavior to the existing endpoint.
• B. Add an endpoint configured with a netTcpBinding.
• C. Add a binding configuration to the existing endpoint named netTcpBinding.
• D. Add a net.tcp base address to the host.

You are creating a Windows Communication Foundation (WCF) service. You do not want to expose the internal implementation at the service layer. You need to expose the following class as a service named Arithmetic with an operation named Sum.
public class Calculator
{ public int Add(int x, int y)
{
}
}
Which code segment should you use?

• A. [ServiceContract(Name="Arithmetic")] public class Calculator
  {
  [OperationContract(ReplyAction="Sum")]
  public int Add(int x, int y)
  {
  .....
  }
  }
• B. [ServiceContract(Namespace="Arithmetic")]
  public class Calculator
  {
  [OperationContract(Action="Sum")]
  public int Add(int x, int y)
  {
  .....
  }
  }
• C. [ServiceContract(ConfigurationName="Arithmetic")] public class Calculator
  {
  [OperationContract(Action="Sum")]
  public int Add(int x, int y)
  {
  .....
  }
  }
• D. [ServiceContract(Name="Arithmetic")]
  public class Calculator
  { [OperationContract(Name="Sum")]
  public int Add(int x, int y)
  {
  ....
  }
  }

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