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

1. HOTSPOT
You are developing a Windows Communication Foundation (WCF) service. You implement a data contract to pass complex data to and from the service.
The service includes the following code: You need to verify the order in which the data is serialized.

For each of the following statements, select True if the statement is true. Otherwise, select False.

2. You are creating a Windows Communication Foundation (WCF) service that implements the following service contract.
[ServiceContract]
public interface IOrderProcessing
{
[OperationContract]
void ApproveOrder(int id);
}
You need to ensure that only users with the Manager role can call the ApproveOrder method.
What should you do?

A) Add a PrincipalPermission attribute to the method and set the Roles property to Manager.
B) Add a SecurityPermission attribute to the method and set the SecurityAction to Demand.
C) In the method body, create a new instance of WindowsClaimSet. Use the FindClaims method to locate a claimType named Role with a right named Manager.
D) In the method body, check the Rights.PossessProperty property to see if it contains Manager.

3. A Windows Communication Foundation (WCF) service implements the following contract.
[ServiceContract| public interface IHelloService { [OperationContract]
[VVebGet(UriTemplate =
"hello?namee{name}")] string SayHello(string name);
}
The implementation is as follows.
public class HelloService: IHelloService { public string SayHello(string name)
{ return "Hello ".+ name;
}
}
The senvice is self-hosted, and the hosting code is as follows.
WebServiceHost svcHost = CreateHoseO;
svcHost.OpenO;
Console. ReadLineO;
SrvHost.CloseO;
You need to implement CreateHost so that the senvice has a single endpoint hosted at
http://localhost:8000/HelloService which code segment should you use?

A) Ur baseAddress new Uri('http //Iocalhost 8000/");
WebServiceHost svc Host =
new WebServiceHost(new HelloService0, baseAddress),
svc Host.AddServiceEndpoint(typeof(IHelloService),
new WebHttpBinding(WebHttpSec urityMode None),
"HelloService");
retumn svc Host;
B) Ur baseAddress = new Urit'http:I/localhost:800O1");r
WebServiceHost svc Host new WebServiceHost(typeof(HelloService), baseAddress);
svcHostAddServiceEndpoint(typeof(lHelloService),
new WebHttpBinding(WebHttpSecurityMode. None),
"HelloService"); return svc Host;
C) WebServiceHost svcHost = new Web Service Host(new HelloServiceO); svcHost
AddServiceEndpoint(typeof(lHelloService),
new WebHttpBinding(WebHttpSecurityMode. None),
"http://Iocalhost: 8000/HelloService");
return svcHost
D) WebServiceHost svcHost new WebServiceHost(typeof(HelloService));
svcHost.AddServiceEndpoint(typeof(lHelloService),
new WebHttpBinding(WebHttpSecurityMode None),
"http://localhost:8000/HelloService");
return svcHost;

4. You have an existing Windows Communication Foundation (WCF) service that exposes a service contract over HTTP using explicit binding configuration.
You need to expose that contract over HTTP and TCP.
What should you do?

A) Add an endpoint behavior named netTcpBehavior to the existing endpoint.
B) Add an endpoint configured with a netTcpBinding.
C) Add a binding configuration to the existing endpoint named netTcpBinding.
D) Add a net.tcp base address to the host.

5. You are developing a custom service host for a Windows Communication Foundation (WCF) service. The service host is named MovieServiceHost.
You need to deploy the service with the custom service host in Microsoft Internet Information Services (IIS) 7.0.
What should you do?

A) Create a factory for the custom service host. Name the factory MovieServiceHostFactory. In the web.config file, add the following attribute to the <add> element within the <serviceActivations> element, factory="HovieServiceHostFactory"
B) Make sure that the service class has a default constructor. Add a public read-only property with the name ServiceHost that returns an instance of the MovieServiceHost class.
C) Decorate the custom service host class with the following line. <System.ServiceModel.Activation.ServiceActivationBuildProvider()>
D) Create a factory for the custom service host. Name the factory MovieServiceHostFactory. In the .svc file, add the following line. <%3 ServiceHost Service="MovieServiceHostFactory" Language="VB"%>

Solutions: