Microsoft 070-503 Test Passed : TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation

You are creating a Windows Communication Foundation application by using Microsoft .NET Framework 3.5. The application must consume an ATOM 1.0 feed published at http://localhost:8000/BlogService/GetBlog. You write the following code segment. (Line numbers are included for reference only.)

You need to ensure that the application prints the title of the feed.
Which code segment should you insert at the line 02?

• A. Dim feed As SyndicationFeed = New SyndicationFeed()
  feed.BaseUri = address
• B. Dim item As Syndicationltem = SyndicationItem.Load(address)
  Dim feed As New SyndicationFeed()
  feed.Items = New Syndicationltem() {item}
• C. Dim feed As SyndicationFeed = SyndicationFeed.Load(address)
• D. Dim item As New SyndicationItem()
  item.BaseUri = address
  Dim feed As New SyndicationFeed()
  feed.Items = New Syndicationltem() {item}

You have created a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
The existing service interface is named IMyService, and contains the following code segment.

You create a new service named IMyServiceVI that contains an operation named DoSomethingElse.
You need to ensure that existing client applications are still able to access the IMyService.DoSomething method without modifying client code.
Which code segment should you use?

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

You are creating a Windows Communication Foundation client application by using Microsoft .NET Framework 3.5.
You add the following code segment to a service contract.
[ServiceContract]
interface IDocumentService
{
[OperationContract]
int DeleteDocument(int id);
}
The DeleteDocument method in the service contract takes a long time to execute.
The client application stops responding until the method finishes execution.
You write the following code segment to create an instance of a service proxy in the client application.
(Line numbers are included for reference only.)
01 static void Main() 02 {
03 DocumentServiceClient client= new DocumentServiceClient();
05 }
06 static void ProcessDeleteDocument(IAsyncResult result)
07 {
06 ...
09 }
You need to ensure that the service methods are called asynchronously.
What should you do?

• A. Insert the following code segment at line 04:
  client.BeginDeleteDocument(20, ProcessDeleteDocument, client);
  Insert the following code segment at line 06:
  int count=(result.AsyncState as Documentserviceclient).EndDeleteDocument(result);
• B. Insert the following code segment at line 04:
  IAsyncresult result = client.BeginDeleteDocument(20, ProcessDeleteDocument, client);
  int count=client.EndDeleteDocument(result);
  Insert the following code segment at line 06:
  result.AsyncWaitHandle.WaitOne();
• C. Insert the following code segment at line 04:
  client.BeginDeleteDocument(20, ProcessDeleteDocument, client);
  Insert the following code segment at line 06:
  result.AsyncWaitHandle.WaitOne();
  int count=(result as Documentserviceclient).EndDeleteDocument(result)
• D. Insert the following code segment at line 04:
  client.BeginDeleteDocument(20, ProcessDeleteDocument, client);
  Insert the following code segment at line 06:
  int count=(result.AsyncState as Documentserviceclient).EndDeleteDocument(null);

You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following code segment.

The implementation of the MyMethod operation must call back the CallbackMethod operation. You need to ensure that the service meets the following requirements:
Which service implementation should you use?

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

You are creating a distributed application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation (WCF) to create the application.
The distributed application contains client applications and a WCF service.
The client applications send e-mail address claims to the WCF service. The custom authorization manager of the service examines whether the claims are of the type "http://contoso.com/ClaimTypes/UserStatus".
You write the following code segment. (Line numbers are included for reference only.)

You need to map the claim types that are provided by the client applications to the claim
types that are expected by the custom authorization manager of the service. Which code segment should you insert at line 14?

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