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

1. 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 C
C) Option A
D) Option B

2. You create a Windows Communication Foundation (WCF) application by using Microsoft Visual Studio 2008 and the .NET Framework 3.5. You create a WCF service by using the following code segment. (Line numbers are included for reference only.)
01 [ServiceContract]
02 public interface IContosoService
03 {
04 [OperationContract]
06 void ProcessTransaction();
07 }
09 public class ContosoService : IContosoService
10 {
11 public void ProcessTransaction() {
12 try {
13 BusinessComponent.ProcessTransaction();
14 }
15 catch (ApplicationException appEx) {
17 }
18 }
19 }
The BusinessComponent.ProcessTransaction method will only throw exceptions from the ApplicationException type. You plan to debug the WCF service. You need to ensure that the WCF service meets the following requirements:
Detailed exception information is provided to the client application. Subsequent calls can be issued to the service by using the same proxy intance after an exception is caught in the client application. What should you do?

A) Add the following code segment at line 05. [FaultContract(typeof(ApplicationException))]
Add the following code segment at line 16. throw new
FaultException<ApplicationException>(appEx);
B) Add the following code segment at line 05. [FaultContract(typeof(ApplicationException))]
Add the following
code segment at line 16. throw appEx;
C) Add the following code segment at line 08.
[ServiceBehavior(IncludeExceptionDetailInFaults=true)] Add the following code segment at
line 16. throw appEx;
D) Add the following code segment at line 08.
[ServiceBehavior(IncludeExceptionDetailInFaults=true)] Add the following code segment at
line 16. throw new FaultException<ApplicationException>(appEx);

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 05?

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

4. 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 D
B) Option C
C) Option A
D) Option B

5. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You create the following service contract. (Line numbers are included for reference only.)

You need to ensure that the GetData operation can be accessed by using the URI in the following manner:
Which code segment should you insert at line 04?

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

Solutions: