Microsoft 070-513

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

1. A Windows Communication Foundation (WCF) service is generating a separate namespace declaration for each body member of a message contract, even though all body members share the same namespace.
You need to simplify the XML representation of your message contract so that the namespace is only declared once.
What should you do?

A) Declare all the body members as properties of a DataContract class and use the class as the only body member of the message contract.
B) Declare a wrapper namespace for the message contract by using the WrapperNamespace property of the MessageContract attribute
C) Declare all of the body members as properties of a separate MessageContract class and use the class as the only body member of the message contract.
D) Explicitly set the Namespace property of all the MessageBodyMember attributes to the same namespace.

2. A Windows Communication Foundation (WCF) service is self-hosted in a console application.
The service implements the IDataAccess contract, which is defined in the MyApplication namespace.
The service is implemented in a class named DataAccessService, which implements the IDataAccess interface and also is defined in the MyApplication namespace.
The hosting code is as follows. (Line numbers are included for reference only.)
01 static void Main(string[] args)
02 {
03 ServiceHost host;
05 host.Open();
06 Console.ReadLine();
07 host.Close();
08 }
You need to create a ServiceHost instance and assign it to the host variable. You also need to instantiate the service host.
Which line of code should you insert at line 04?

A) host = new ServiceHost("MyApplication.IDataAccess");
B) host = new ServiceHost(typeof(DataAccessService));
C) host = new ServiceHost(typeof(IDataAccess));
D) host = new ServiceHost("MyApplication.DataAccessService");

3. You are developing a Windows Communication Foundation (WCF) service that allows customers to update financial data. The service contract is defined as follows. (Line numbers are included for reference only.)

You need to ensure that the service is invoked within a transaction.
What should you do?

A) Replace line 01 with the following code.
[ServiceContract(
SessionMode = SessionMode.NotAllowed)]
B) Replace line 01 with the following code.
[ServiceContract( SessionMode = SessionMode.Required)]
C) Insert the following code at line 08.
[ServiceBehavior(
TransactionAutoCompleteOnSessionClose = false)]
D) Insert the following code at line 08.
[ServiceBehavior(
ReleaseServiceInstanceOnTransactionComplete = false)]

4. You are developing a Windows Communication Foundation (WCF) service to provide shopping cart support. ASP.NET compatibility mode is not enabled.
The shopping cart information must be retained across user visits to the store until the user explicitly empties the cart or submits the cart contents to order.
You need to implement the service as a DurableService.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) In the method to add an item to the shopping cart, serialize the shopping cart contents after adding the current item and storing it in a Session variable.
B) Use wsHttpContextBinding for both the client application and the service.
C) Use basicHttpBinding for both the client application and the service.
D) Create the persistence provider database and configure the persistenceProvider element of the service behavior to point to that database.

5. A Windows Communication Foundation (WCF) service has the following contract.

This is one of several service contracts hosted by your application. All endpoints use SOAP
1.2 bindings with WS-Addressing 1.0. The System.ServiceModel.MessageLogging trace source in the system.diagnostics configuration section is configured with one listener.
You need to make sure that only the messages that are returned from the DoWork operation are logged.
Which XML segment should you add to the
system.serviceModel/diagnostics/messageLogging/filters configuration element?

A) <add xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
//soap:Action[text() =
1http://contoso.com/I3hipping/DoWork']
</add>
B) odd xmlns:soap="http://www.u3.org/2003/05/soap-envelope">
//soap:Action[text() =
'http://contoso.com/I5hipping/DoWorkResponse']
</add>
C) <odd xmlns:addr-"http://vww.w3.org/2005/08/addressing">
//addr:Action[text() -
'http://contoso.com/IShipping/DoWorkResponse' ]
</add>
D) <add xmlns:addr="http://www.w3.org/2005/Q8/addressing">
//addr:Action[text() =
'http://contoso.com/IShipping/DoUork' ]
</add>

Solutions: