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

1. DRAG DROP
You develop a Windows Communication Foundation (WCF) service that uses the SOAP protocol.
You must secure the service by using Kerberos authentication for the transport layer. The SOAP messages must be authenticated by using a Security Assertion Markup Language (SAML) token.
You need to configure the service configuration file.
How should you complete the relevant markup? (To answer, drag the appropriate markup segment to the correct locations in the answer area. Each markup 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.)

2. You are creating an ASP.NET Web application that hosts several Windows Communication
Foundation (WCF) services. The services have ASP.NET Compatibility Mode enabled. Users authenticate with the Web application by using a cookie-based ASP.NET Forms Authentication model.
You add a service file named Authentication.svc that contains the following code segment.
<%@ ServiceHost
Service="System.Web.ApplicationServices.AuthenticationService"
Factory="System.Web.ApplicationServices.ApplicationServicesHostFactory" %>
You need to ensure that users can access the WCF services without having to re-authenticate.
Which two configuration settings should you add (Each is part of a complete solution. Choose two.)

A) In the system.web.extensions/scripting/webServices/authenticationService element, set the enabled attribute to true.
B) In the system.web.extensions/scripting/webServices/profileService element, set the enabled attribute to true.
C) Add a service endpoint with basicHttpBinding for the contract System.Web.ApplicationServices.AuthenticationService.
D) Add a custom service behavior named AuthenticationServiceTypeBehaviors with a serviceAuthenticationManager element that has serviceAuthenticationManagerType set to System.Web.Security.SqlMembershipProvider.

3. You are creating a Windows Communication Foundation (WCF) service that accepts messages from clients when they are started. The message is
defined as follows.
<MessageContract()>
Public Class Agent
Public Property CodeName As String
Public Property SecretHandshake As String
End Class
You have the following requirements:
The CodeName property must be sent in clear text. The service must be able to verify that the property value was not changed after being sent by the client.
The SecretHandshake property must not be sent in clear text and must be readable by the service.
What should you do?

A) Add an ImmutableObject attribute to the CodeName property and set its value property to True. Add a Browsable attribute to the SecretHandshake property and set its value to False.
B) Add a MessageBodyMember attribute to the CodeName property and set the ProtectionLevel to Sign. Add a MessageBodyMember attribute to the SecretHandshake property and set the ProtectionLevel to EncryptAndSign.
C) Add an XmlText attribute to the CodeName property and set the DataType property to Signed. Add a PasswordPropertyText attribute to the SecretHandshake property and set its value to True.
D) Add a DataProtectionPermission attribute to the each property and set the ProtectData property to True.

4. You are modifying a Windows Communication Foundation (WCF) service that allows customers to update financial data. The service currently requires a transaction from the client application and is working correctly. The service contract is defined as follows. (Line numbers are included for reference only.)

The service must be modified so that client applications do not need to initiate a transaction when calling the operation. The service must use the client application's transaction if one is available. Otherwise it must use its own transaction.
You need to ensure that the service operation is always executed within a transaction.
What should you do?

A) Option B
B) Option D
C) Option C
D) Option A

5. You are modifying a Windows Communication Foundation (WCF) service that provides access to report generation system. The following code segment is part of your service contract. (Line numbers are included for reference only.)

Client applications are blocked while the service processes reports. You need to ensure that the service methods are asynchronous.
What should you do?

A) Insert the following code at line 04.
[OperotionConcroct(AsyncPactern = false)
Insert the following code at line 07.
[OperacionConcracc(AsyncPactern = true)]
B) Insert the following code at line 04.
[OperationContract (AsyncPattern = false)]
C) Insert the following code at line 04.
[OperationConcracc(AayncPaccern = true)]
D) Insert the following code at line 04.
[OperationContract]
Insert the following code at line 07.
[OperationConcracc(AsyncPactern = true)]

Solutions: