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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 application by using Microsoft .NET Framework 3.5.
You create a service that provides access to the intranet file server of your company. Users must be able to update and delete files from the server by using the service.
You write the following code segment.

You need to ensure that files can be updated or deleted only by users with the required privileges defined in the server's file system ACLs.
What should you do?

A) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperat ions="true" />
Decorate the Delete and Update methods of the IFileServer interface by using the following
attribute.
<OperationBehavior(Impersonation:=ImpersonationOption.Alloraed)>
B) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperat ions="false" />
Decorate the Delete and Update methods of the IFileServer interface by using the following
attribute.
<OperationBehavior(Impersonation:=ImpersonationOption.Required)> _
C) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperations="false" />
Decorate the Delete and Update methods of the FileServer class by using the following
attribute.
< OperationBehavior(Impersonation : =ImpersonationOption. Required )> _
D) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperations="true" />

2. You are creating a Windows Communication Foundation service by using Microsoft .NET
Framework 3.5.
The client applications are unable to use SSL You need to ensure that clients authenticate by using a token provided by a Security Token Service (STS). What should you do?

A) Use a WSFederationHttpBinding binding with the security mode set to Message.
B) Use a BasicHttpBinding binding with the security mode set to Message.
C) Use a BasicHttpBinding binding with the security mode set to TransportWithMessageCredential.
D) Use a WSFederationHttpBinding binding with the security mode set to TransportWithMessageCredential.

3. 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 10?

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

4. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service contains the following binding configuration in the configuration file. (Line numbers are included for reference only.)
01 <wsHttpBinding>
02 <binding name="ssl">
04 </binding>
05 </wsHttpBinding>
You need to ensure that the following requirements are met:
Which configuration setting should you insert at line 03?

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

5. You are creating a Windows Communication Foundation client application by using Microsoft .NET Framework 3.5.
You need to inspect the parameters on the client application.
Which three actions should you perform? (Each correct answer presents part of the solution. Choose three.)

A) Implement the IParameterlnspector interface.
B) Insert a code segment that creates a behavior in the ICallContextlnitializer.BeforelnvokeO method.
C) Insert a behavior before you call the ClientBase.Open method.
D) Implement the lEndpointBehavior behavior to add the parameter inspector to the Dispatcher. DispatchOperation.Parameterlnspectors method.
E) Implement the ICIientMessagelnspector interface.
F) Implement the lEndpointBehavior behavior to add the parameter inspector to the Dispatcher. ClientOperation.Parameterlnspectors method.

Solutions: