You are creating a client application that will call a Windows Communication Foundation service. The service was created by using Microsoft .NET Framework
3.5. You write the following code segment.

You plan to share the validation logic between the client application and the WCF service.
You need to generate a client-side service proxy that includes the validation logic.
Which four tasks should you perform? (Each correct answer presents part of the solution. Choose four.)

• A. In the Client project, use the Add Service Reference dialog box to reference the service.
• B. In the Client project, use the Add Reference dialog box to add a project reference to the Service project.
• C. In the Client project, use the Add Web Reference dialog box to reference the service.
• D. Create a Class Library project for the DataContract classes.
• E. In the Client project, add a reference to the Class Library project.
• F. In the Service project, add a reference to the Class Library project.

You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You write the following code segment for the service implementation.
(Line numbers are included for reference only.)
01 public void PutMessage(Message msg)
02 {
03 string value=null;
05 }
You need to retrieve the content from the received message body and store it in the variable named value. Which code segment should you insert at line 04?

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

You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
The service will authenticate the client applications by using Personal Information Cards.
You write the following code segment. (Line numbers are included for reference only.)
01 public class CustomServiceAuthorizationManager:
02 ServiceAuthorizationManager{
03 protected override bool CheckAccessCore(OperationContext operationContext)
04 {
05 string action = operationContext.RequestContext.RequestMessage.Headers.Action;
06 if (action == "http://tempuri.org/lEnginefUpdate")
07 {
06 foreach (ClaimSet cs in
operationContext.ServiceSecurityContext.AuthorizationContext.ClaimSets)
09 {
10
11
12 return false;
13 }
14 return true;
15 }
16 } ...
17 bool IsEmailValid(string email)
18 {
19 //e-mail validation is performed here;
20 return true;
21 }
You need to ensure that only those client applications that provide a valid email address can execute the Update method.
Which code segment should you insert at line 10?

• A. foreach (Claim c in
  cs.FindClaims("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress",
  Rights.PossessProperty))
  return IsEmailValid(c.Resource.ToString());
• B. foreach (Claim c in
  cs.FindClaims("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress",
  Rights.Identity))
  return IsEmailValid(c.Resource.ToString());
• C. foreach (Claim c in
  cs.FindClaims("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress",
  String.Empty))
  return IsEmailValid(c.Resource.ToString());
• D. foreach (Claim c in
  cs.FindClaims("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress",
  "PossessProperty"))
  return IsEmailValid(c.Resource.ToString());

You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service contains the following code segment.
[ServiceContract] public interface IMathSrvc {
[OperationContract] void
AddNumbers(int num);
[OperationContract] int
ClearQ; }
You need to ensure that the service meets the following requirements: The service can call the AddNumbers operation multiple times. The AddNumbers operation must start a session on the initial call.
The service must call the Clear operation only if a session exists.
The service must not call other operations after it calls the Clear operation.
Which code segment should you use to replace the existing code segment?

• A. [ServiceContractJpublic interface IMathSrvcj
  [OperationContract(lslnitiating=true, lsOneWay=true)J void AddNumbers(int num);
  [OperationContract(lsTerminating=true)] int Clear();}
• B. [ServiceContractJpublic interface IMathSrvcj
  [OperationContract(lsOneWay=true)] void
  AddNumbers(int num); [OperationContract(lsTerminating=true)] int Clear0;}
• C. [ServiceContractJpublic interface ImathSrvc]
  [OperationContract(lsTerminating=false)] void
  AddNumbers(int num); [OperationContract(lsTerminating=true)] int ClearQ;}
• D. [ServiceContractJpublic interface ImathSrvc] [OperationContract] void
  AddNumbers(int num);
  [OperationContract(lslnitiating=false, lsTerminating=true)] int Clear();}