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Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation Sample Questions:

1. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
The WCF service must authenticate the client applications by validating credit card numbers and expiry dates. You write the following code segment. (Line numbers are included for reference only.)

You need to implement custom authentication for the WCF service. Which code segment should you insert at line 05?

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

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

3. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following code segment. (Line numbers are included for reference only.)

When you browse to the base address of the service, you receive the following message:
"Metadata publishing for this service is currently disabled."
You debug the code and discover that the ServiceMetadataBehavior behavior was previously nonexistent.
You need to enable metadata publishing.
What should you do?

A) Insert the following code segment at line 06. smb.HttpGetEnatoled =True
B) Insert the following code segment at line 12. smb.HttpGetEnatoled =True
C) Modify the code segment at line 02 in the following manner. Dim mexAddress As New Uri ("/service")
D) Delete lines 08 and 09.

4. You create a client application by using Microsoft .NET Framework 3.5. The client application uses a Windows Communication Foundation (WCF) service.
The WCF service analyzes incoming message headers to verify whether special processing of the message is required.
The client application accompanies each call to the methods of the service with the address header. You write the following code segment. (Line numbers are included for reference only.)

You need to ensure that the following requirements are met: Which code segment should you insert at line 08?

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

5. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You write the following code segment to implement an operation contract. (Line numbers are included for reference only.)

Only the contents of the File.xml file are sent to the client application.
You need to ensure that the SOAP envelope generation is always disabled for messages that are sent to the client application.
Which line of code should you insert at line 04?

A) ver = HessageVersion.Default
B) ver = HessageVersion.None
C) ver =HessageVersion.Soap11BSAddressing10
D) ver=OperationContext.Current.IncomingHessageVersion

Solutions: