Online Access Free 70-513 Exam Questions

You are developing a client application that uses the following code to consume a Windows
Communication Foundation (WCF) service. (Line numbers are included for reference only.)
01 Dim myBinding As BasicHttpBinding =
New BasicHttpBinding()
02 Dim myEndpointAddress As EndpointAddress =
New EndpointAddress(
"http://contoso.com/TaxService.svc")
04 Dim client As ITaxService =
channelFactory.CreateChannel()
05 Dim data As String = client.GetData(1)
You need to consume the service.
Which code segment should you insert at line 03?

• A.Dim channelFactory =
  New ChannelFactory(Of ITaxService)()
• B.channelFactory =
  New ChannelFactory(Of ITaxService)
  ("http://contoso.com/TaxService.svc")
• C.Dim channelFactory =
  New ChannelFactory(Of ITaxService)
  (myBinding, myEndpointAddress)
• D.Dim channelFactory =
  New ChannelFactory(Of ITaxService)(myBinding)

A Windows Communication Foundation (WCF) client application is consuming an RSS syndication feed from a blog. You have a SyndicationFeed variable named feed. The application iterates through the items as follows. (Line numbers are included for reference only.)
01 foreach (SyndicationItem item in feed.Items)
02 {
03 }
You need to display the content type and body of every syndication item to the console.
Which two lines of code should you insert between lines 02 and 03?

• A.Console.WriteLine(item.Content.Type); Console.WriteLine(item.Content.ToString());
• B.Console.WriteLine(item.Content.Type); Console.WriteLine(((TextSyndicationContent)item.Content).Text);
• C.Console.WriteLine(item.Content.GetType()); Console.WriteLine(item.Content.ToString());
• D.Console.WriteLine(item.Content.GetType()); Console.WriteLine(((TextSyndicationContent)item.Content).Text);

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.)

Correct Answer:

You are creating a Windows Communication Foundation (WCF) service based on WSHttpBinding. New audit requirements dictate that callers must be authenticated on every call to ensure that their credentials have not been revoked.
You need to ensure that the service will not cache the security request token.
What should you do?

• A.In the message security configuration, change clientCredentialType from IssuedToken to UserName.
• B.At the end of every operation, call the SessionStateUtility.RaiseSessionEnd method.
• C.Apply a ServiceBehavior attribute to the service implementation class with the InstanceContextMode property set to Single.
• D.In the message security configuration, set establishSecurityContext to false.

You are developing a client that sends several types of SOAP messages to a Windows Communication Foundation (WCF) service method named PostData.
PostData is currently defined as follows.
[OperationContract]
void PostData(Order data);
You need to modify PostData so that it can receive any SOAP message.
Which code segment should you use?

• A.[OperationContract(IsOneWay = true, Action = "*", ReplyAction = "*")] void PostData(BodyWriter data);
• B.[OperationContract] void PostData(BodyWriter data);
• C.[OperationContract] void PostData(Message data);
• D.[OperationContract(IsOneWay = true, Action = "*", ReplyAction = "*")] void PostData(Order data);