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Microsoft TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4 Sample Questions:

1. You are developing a Windows Communication Foundation (WCF) service that will be hosted in Microsoft Internet Information Services (IIS) 7.0.
The service must be hosted in an IIS application named Info. You need to enable this service to be hosted in IIS by changing the web.config file.
Which XML segment should you add to the web.config file

A) < serviceHostingEnvironment >
< serviceActivations >
<add relativeAddress ="Info" service=" Info.svc " />
</ serviceActivations >
</ serviceHostingEnvironment >
B) < serviceHostingEnvironment >
< transportConfigurationTypes >
<add name=" Info.svc " transportConfigurationType =" FileNotRequired " />
</ transportConfigurationTypes >
</ serviceHostingEnvironment >
C) < serviceHostingEnvironment >
< serviceActivations >
<add relativeAddress =" Info.svc " service="Info" />
</ serviceActivations >
</ serviceHostingEnvironment >
D) < serviceHostingEnvironment >
< transportConfigurationTypes >
<add name="Info" transportConfigurationType =" Info.svc " />
</ transportConfigurationTypes >
</ serviceHostingEnvironment >

2. DRAG DROP
You develop a Windows Communication Foundation (WCF) service. The service implements the IRegistrationService interface in a class named RegistrationService.
You need to configure the service to use file-less activation.
How should you complete the relevant code? (To answer, drag the appropriate code segments to the correct location or locations in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

3. You are creating an application that consumes a Windows Communication Foundation (WCF) service. The service implements the IService contract. The client application contains the CallbackHandler class, which implements IServiceCallback.
You need to ensure that a client proxy is created that can communicate with the service over a duplex channel.
Which code segment should you use?

A) var handler = new CallbackHandler();
var clientFactory = new DuplexChannelFactory<IService>{
typeof(CallbackHandler), new WSDualHttpBinding());
var client = clientFactory.CreateChannel(
new EndpointAddress ("")) ;
B) var handler = new CallbackHandler();
var clientFactory = new DuplexChannelFactory<IService>{
new WSHttpBinding());
var client = clientFactory.CreateChannel(
new InstanceContext (handler) , new EndpointAddress ("")) ;
C) var handler = new CallbackHandler();
var clientFactory = new DuplexChannelFactory<IService>{
new WSHttpContextBinding() ;
var clienc = clientFactory.CreateChannelt
new InstanceContext (handler) , new EndpointAddress (" "));
D) var handler = new CallbackHandler();
var clientFactory =
new DuplexChonnelFaccory<IService>{
typeof(CallbackHandler), new WSDualHttpBinding ()); var client =
clientFactory.CreateChannel(
new InstanceContext (handler) , new EndpointAddress ("")) ;

4. DRAG DROP
You use Visual Studio to develop a Windows Communication Foundation (WCF) service. The service is not hosted.
You cannot use the WcfTestClient.exe tool to test the service.
You need to test the service from a separate Visual Studio solution that contains a simple console application.
Which four actions should you perform in sequence? (To answer, move the appropriate four actions from the list of actions to the answer area and arrange them in the correct order.)

5. DRAG DROP
You are developing a Windows Communication Foundation (WCF) service that contains a method named ProcessPayments. The service is hosted in Internet Information Services (IIS).
You have the following requirements:
- Create a new instance of the service every time that a client application calls the ProcessPayments method. - Process every call from client applications one at a time.
You need to complete the code for the WCF service.
Which four code segments should you use in sequence? (To answer, move the appropriate code segments from the list of code segments to the answer area and arrange them in the correct order.)

Solutions: