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

1. You are developing a Windows Communication Foundation (WCF) service. The service configuration file has a <System.Diagnostics> element defined.
You need to ensure that all security audit information, trace logging, and message logging failures are recorded.
Which configuration segment should you add to the <System.Diagnostics> element?

A) Option C
B) Option D
C) Option A
D) Option B

2. DRAG DROP
You develop a Windows Communication Foundation (WCF) service. The service implements the IRegistrationService interface in a class named RegistrationService.
You need to configure the service to use file-less activation.
How should you complete the relevant code? (To answer, drag the appropriate code segments to the correct location or locations 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.)

3. You are developing a Windows Communication Foundation (WCF) service that allows customers to update financial data.
The client applications call the service in a transaction. The service contract is defined as follows. (Line numbers are included for reference only.)

Customers report that the transaction completes successfully even if the Update method throws an exception.
You need to ensure that the transaction is aborted if the Update method is not successful.
What should you do?

A) insert the following line at line 22. throw;
B) Insert the following line at line 09. [ServiceBehavior( TransactionAutoCompleteOnSessionClose = true)]
C) Insert the following line at line 09. [ServiceBehavior( TransactionAutoCompleteOnSessionClose = false)]
D) Replace line 12 with the following line. [OperationBehavior( TransactionScopeRequired = true, TransactionAutoCoroplete - false)]

4. You are developing a Windows Service. The Windows Service will host a Windows Communication Foundation (WCF) service.
The Windows Service class will inherit from ServiceBase.
You need to ensure that the WCF service starts when the Windows Service is restarted.
What should you do in the Windows Service class?

A) Override the OnPowerEvent method and open a new ServiceHost.
Override the OnShutdown method and close the ServiceHost.
B) Override the OnStart method and create and open a new ServiceHost.
Override the OnStop method and close the ServiceHost.
C) Create a public method named Main.
Create a new ServiceHost in the Main method.
Override the OnShutdown method and close the ServiceHost.
D) Override the OnContinue method and open a new ServiceHost.
Override the OnStop method and close the ServiceHost.

5. A Windows Communication Foundation (WCF) service uses a list of application-defined
roles for operations.
These roles are stored in a database.
You need to authorize calls against the list of roles retrieved from the database.
Which service behavior should you use to authorize the calls?

A) <serviceAuthorization principalPermissionModez"None" roleProviderNames"SqlProvider" />
B) <serviceAuthorization principalPermissionMode="None" roleProviderNamee"SqlProvider" Is
C) <serviceAuthorization principalPermissionModes"None" roleProviderNames"SqlProvider" I>
D) <serviceAuthorization principalPermissionModez"None" roleProviderNamez'SqlProvider" />

Solutions: