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Microsoft TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4 Sample Questions:

1. A Windows Communication Foundation (WCF) solution uses the following contract.
<ServiceContract(SessionMode:=SessionMode Allowed)s Public Interface lMyService <OperationContract(lsTerminating:sFalse)s Sub Initialize () <OperationContract(lslnitiating:sFalse)>s Sub DoSomething() <OperationContract(lsterminating:=True)>
Sub Terminate ()
End Interface You need to change this interface so that:
"Initialize is allowed to be called at any time before Terminate is called.
"DoSomething is allowed to be called only after Initialize is called, and not allowed to be called after Terminate is called. "Terminate will be allowed to be called only after Initialize is called
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Change the OperationContract attribute of the Terminate operation to the following. OperationContract(Islnitiatings:False, lsTerminating: 'True)
B) Change the ServiceContract attribute of the lMyService interface to the following. ServiceContract(SessionMode:sSessionModeAllowed)?
C) Change the OperationContract attribute of the Initialize operation to the following. OperationContract(lslnitiating: 'True, IsTerminating: 'False)
D) Change the ServiceContract attribute of the lMyService interface to the following. ServiceContract(SessionMode:sSessionMode. Required)

2. DRAG DROP
You are developing a Windows Communication Foundation (WCF) service that contains a method named ProcessPayments. The service is hosted in Internet Information Services (IIS).
You have the following requirements:
- Create a new instance of the service every time that a client application calls the ProcessPayments method. - Process every call from client applications one at a time.
You need to complete the code for the WCF service.
Which four code segments should you use in sequence? (To answer, move the appropriate code segments from the list of code segments to the answer area and arrange them in the correct order.)

3. A Windows Communication Foundation (WCF) service that handles corporate accounting must be changed to comply with government regulations of auditing and accountability
You need to configure the WCF service to execute under the Windows logged-on identity of the calling application.
What should you do?

A) Within the service configuration, add a ServiceAuthorization behavior to the service, and set ImpersonateCallerForAulOperations to true.
B) Within the service configuration, add a ServiceCredentials behavior to the service, and set type to Impersonate
C) Within the service configuration, add a ServiceAuthenticationManager behavior to the service, and set ServiceAuthenticationManagerType to Impersonate.
D) Within the service configuration, add a serviceSecurityAudit behavior to the service, and set serviceAuthorizationAuditLevel to SuccessOrFailure

4. 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) textMessageEncoding and msmqIntegrationTransport in this order
C) msmqIntegrationTransport and textMessageEncoding in this order
D) msmqTransport and textMessageEncoding in this order

5. DRAG DROP
You develop a Windows Communication Foundation (WCF) service that is hosted within a console application. The service implements the IRegistrationService interface in a class named RegistrationService.
You need to add code to the console application to host the WCF service.
How should you complete the relevant code? (To answer, drag the appropriate code segment to the correct location in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

Solutions: