You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service will be hosted in a Console application.
You need to configure the service by using a configuration file other than the default app.config file. Which code segment should you use?

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

You are creating a remote database management application by using Microsoft Windows Forms and Microsoft .NET Framework 3.5
You use the Windows Communication Foundation model to create the application. You write the following code segment. (Line numbers are included for reference only.)

You need to ensure that each time a client application calls the Open() method, a new service instance is created.
Which code segment should you insert at line 03?

• A. [OperationBehavior(ReleaseInstanceMode=ReleaseInstanceMode.None)]
• B. [OperationBehavior(ReleaseInstanceMode=ReleaseInstanceMode.BeforeCall)]
• C. [OperationBehavior(TransactionScopeRequired=true)]
• D. [OperationBehavior(AutoDisposeParameters=true)]

You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following code segment.

You need to ensure that when the MyMethod method is called, the service is the root of a transaction. Which code segment should you insert at line 09?

• A. [OperationBehavior(TransactionScopeRequired=true)] [TransactionFlow(TransactionFlowOption.Allowed)]
• B. [OperationBehavior(TransactionScopeRequired=false)] [TransactionFlow(TransactionFlowOption.NotAllowed)]
• C. [OperationBehavior(TransactionScopeRequired=true)] [TransactionFlowfTransactionFlowOption.NotAllowed)]
• D. [OperationBehavior(TransactionScopeRequired=false)] [TransactionFlow(TransactionFlowOption.Mandatory)]

DRAG DROP
You are creating an application in Windows Communication Foundation (WCF) by using Microsoft.NET Framework 3.5.
You need to ensure that the client application communicates with the service by using a duplex contract.
Which five actions should you perform? (To answer, move the five appropriate actions from the list of actions to the answer area, and arrange them in the correct order.)

You are creating an application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation (WCF) to create the application. The YourUserNamePasswordValidator class is implemented in the host application of the WCF service. The host application is named YourServiceHost.exe. You write the following code segment.
namespace YourSecureService
{
class YourUserNamePasswordValidator : UserNamePasswordValidator {
public override void Validate(string userName, string password)
{
...
}}
}
You need to perform custom validation of the user name and password by using the YourUserNamePasswordValidator class. What should you do?

• A. Set the netTcpBinding binding in the following manner. <security mode="Transport">
  <transport
  clientCredentialType="UserName" /></security> Set the service behavior by using the
  following credentials.
  <userNameAuthentication customUserNamePasswordValidatorType="YourSecureService.
  YourUserNamePasswordValid ator " userNamePasswordValidationMode="Custom"/>
• B. Set the wsHttpBinding binding in the following manner. <security mode="Message">
  <message
  clientCredentialType="UserName" /></security> Set the service behavior by using the
  following credentials.
  <userNameAuthentication customUserNamePasswordValidatorType="YourSecureService.
  YourUserNamePasswordValid a or,YourServiceHost"
  userNamePasswordValidationMode="Custom"/>
• C. Set the wsHttpBinding binding in the following manner. <security mode="Message">
  <transport
  clientCredentialType="UserName" /></security> Set the service behavior by using the
  following credentials.
  <userNameAuthentication
  customUserNamePasswordValidatorType="YourUserNamePasswordValidator,
  YourServiceHo st" userNamePasswordValidationMode="Custom"/>
• D. Set the wsHttpBinding binding in the following manner. <security mode="Message">
  <message
  clientCredentialType="UserName" /></security> Set the service behavior by using
  thefollowing credentials.
  <userNameAuthentication
  customUserNamePasswordValidatorType="YourSecureService.YourUserNamePasswordV
  alid ator"
  userNamePasswordValidationMode="Custom"/>