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

1. You are creating a client application that will call a Windows Communication Foundation service. The service was created by using Microsoft .NET Framework 3.5.
You write the following code segment.
[DataContract]
public class CreditCard {
private string cardNumber = 0; [DataMember] public string Name { get; set; } [DataMember] public string CardNumber { get { return cardNumber; } set { if (!IsValidCreditCardNumber(value)) { throw new ArgumentException("Invalid credit card number"); } cardNumber = value; } }
} You plan to share the validation logic between the client application and the WCF service.
You need to generate a client-side service proxy that includes the validation logic.
Which four tasks should you perform? (Each correct answer presents part of the solution. Choose four.)

A) In the Client project, use the Add Reference dialog box to add a project reference to the Service project.
B) In the Service project, add a reference to the Class Library project.
C) In the Client project, add a reference to the Class Library project.
D) Create a Class Library project for the DataContract classes.
E) In the Client project, use the Add Service Reference dialog box to reference the service.
F) In the Client project, use the Add Web Reference dialog box to reference the service.

2. DRAG DROP
You are creating an application in Windows Communication Foundation (WCF) by using Microsoft.NET Framework 3.5.
You need to ensure that the client application communicates with the service by using a duplex contract.
Which five actions should you perform? (To answer, move the five appropriate actions from the list of actions to the answer area, and arrange them in the correct order.)

3. You create a service by using Microsoft .NET Framework 3.5. You use Windows
Communication Foundation to create the service.
You use the WSHttpBinding binding to prevent tampering of the data. Users report that the
data is unreadable.
You need to troubleshoot the problem by logging the incoming messages. Which code fragment should you use?

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

4. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service contains the following code segment.

You need to ensure that the service meets the following requirements:
Which code segment should you use to replace the existing code segment?

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

5. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. You configure a binding to enable streaming.
You need to ensure that the client application is able to stream large XML files to the WCF service.
Which operation contract should you create?

A) <OperationContractQ> _ Sub UploadFile(ByVal xmlData As ByteQ)
B) <OperationContractQ> _ Sub UploadFile(ByVal xmlData As XmlWriter)
C) <OperationContractQ> _ Sub UploadFile(ByVal xmlData As Stream)
D) <OperationContractQ> _ Sub UploadFile(ByVal xmlData As StreamWriter)

Solutions: