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

1. You are creating a distributed application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation to create the application. You plan to perform the following tasks:
You write the following code segment.

You need to ensure that only those client applications that provide credentials belonging to the AdminGroup role can access the Remove method. What should you do?

A) Add the following attribute to the Remove method of the Service class. <PrincipalPermission(SecurityAction.Demand, Role:="AdminGroup")> _
B) Add the following attribute to the Service class <PrincipalPermission(SecurityAction. Demand,_ Name:="IService. Remove", Role:="AdminGroup")> _
C) Add the following attribute to the Service class. <PrincipalPermission(SecurityAction.
Demand, _ Name:="Remove", Role:="AdminGroup")> _
D) Add the following attribute to the Remove method of the IService interface. <PrincipalPermission(SecurityAction.Demand, Role:="AdminGroup")> _

2. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You need to ensure that the service logs only messages that do not conform to the message contract.
Which code fragment should you use?

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

3. You create a client application by using Microsoft .NET Framework 3.5. The client application uses a Windows Communication Foundation (WCF) service. You plan to implement inspection handling on the client application and the WCF service. You need to add error handling to the WCF service. What should you do?

A) Modify the BeforeSendReply method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.
B) Modify the AfterReceiveReply method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.
C) Modify the AfterReceiveRequest method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.
D) Modify the BeforeSendRequest method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.

4. You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You need to ensure that the callback channel between the service and the client application is available for the service to send a status message.
Which code segment should you use?

A) if(((ICommunicationObject)callback).State== CommunicationState.Created)
B) if(((ICommunicationObject)callback).State== CommunicationState.Opening)
C) if(((ICommunicationObject)callback).State== CommunicationState.Faulted)
D) if(((ICommunicationObject)callback).State== CommunicationState.Opened)

5. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You need to ensure that data sent in a SOAP header is in the following XML format.
<Data> <string>String 1</string> <string>String 2</string> <string>String 3</string>
</Data>
Which code segment should you use?

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

Solutions: