You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
You need to use a custom service host to host the WCF service in Windows Activation Services (WAS).
What should you do?

• A. Add a reference to the custom service host in the web.config file.
• B. Write hosting code for the WCF service.
• C. Add code to instantiate the custom service host from within the main procedure of the WCF service.
• D. Create a custom service host factory that instantiates the custom service host. Include a reference to this factory in the .svc file.

You create a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. Client applications that run on different platforms access the WCF service.
These applications transmit confidential data to the WCF service. You write the following binding configuration.
....
<binding name="TransportSecurity" >
<security mode="Transport" />
</binding>
...
You need to configure the service for optimum interoperability and optimum security.
Which code fragment should you use?

• A. Option D
• B. Option B
• C. Option C
• D. Option A

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

You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The metadata for the service is available at http://localhost:8080/MyService/mex.
The svcutil.exe tool generates the following two files from the metadata:
You need to ensure that the configuration file is merged with an existing app.config file.
Which command should you use?

• A. Svcutil http: //localhost:8080/MyService/mex /out:Proxy.cs /config:app.config /noconfig
• B. Svcutil http: //localhost:8080/MyService/mex /out:Proxy.cs /mergeConfig
• C. Svcutil http: //localhost:8080/MyService/mex /out:Proxy.cs /config:app.config
• D. Svcutil http: //localhost:8080/MyService/mex /out:Proxy.cs /config:app.config /mergeconfig