070-513 무료 덤프문제 온라인 액세스

You are developing a Windows Communication Foundation (WCF) service to replace an existing ASMX Web service.
The WCF service contains the following code segment. (Line numbers are included for reference only.)

The existing Web service returns the EmployeeID as an attribute of the EmployeeInfo element in the response XML.
You need to ensure that applications can consume the service without code changes in the client.
What should you do?

• A.Insert the following code at line 09.
  <XmlSerializerFocmat()>
  Insert the following code at line 22.
  <XmlAttribute()>
• B.Insert the following code at line 02.
  <XmlSerializerFormat()>
  Insert the following code at line 22.
  <XmlAtttibute()>
• C.Insert the following code at line 20.
  <DataContractFormat()>
  Insert the following code at line 22.
  <DataMember()>
• D.Insert the following code at line 02.
  <DataConttactFormat()>
  Insert the following code at line 22.
  <DataMember ()>

A Windows Communication Foundation (WCF) solution uses the following contract to share a message across its clients (Line numbers are included for reference only)
01 <ServiceContract0>
02PuElic Interface ITeamMessageService
04 <OperationContractO>
05Function GetMessage() As String
06
07 <OperationContract0>
08Sub PutMessage(Byval message As String)
O9End Interface
The code for the serAce class is as follows.
10 Public Class TeamMessageService0
11 Implements lTearmt4essageService
12
1 3Dim key As Guid = Guid.NewGuid()
1 4Dim message As String = "Today's Message'
15
16PuUic Function GetMessage0As String -
1 7lmpements lTearm*AessageServiceGetMessage
18
1 9Retun String. Fommat("Message:{0) Key:{ 1}", message, key)
20End Function
21
22PubIic Sub PutMessage(ByV message As Stnng) -
23lmpements lTearrlessageService PutMessage
24
25Me message = message
26End Sub
27
28End Class
The service is self-hosted The hosting code rs as follows
29Dim host As ServiceHost =
New ServiceHost(GetType(TearrwiessageSeMce))?
3ODim binding As Basic HttpBindngt
New BasicHttpBindiig(BasicHttpSecurityMode. None) 31 host.AddServiceEndpoint(
"MyAppication lTearrtAessageService", binding
Thttp /Ilac aihost. 1 2345)
32host Open()
You need to ensure that all clients calling GetMessage will retrieve the same string, even if the message is upd(ed by clients calling PutMessage what should you do?

• A.Pass a service instance to the instancing code in line 29, as follows.
  Dim host As ServiceHost z New ServiceHost(New TeamMessageServiceO)
• B.Add the following attribute to the TeamMessageService class, before line 1 0002E
  <ServiceBehavior( lnstanceContextll ode. = InstanceContextMode. PerSession)>
• C.Redefine the message string in line 14, as follows.
  Shared message As String "Today's Message"
  Then change the implementation of PutMessage in lines 22-26 to the following
  Public Sub PutMessage(ByVal message As rng) - Implements ITean-
  MessageService.PutMessage
  TeamMessageSenAce.message = message End Sub
• D.Add the following attribute to the TeamMessageService class, before line 10.
  <ServceBehavior(lnstanceContextMode lnstanceContextMode. Single)>

A Windows Communication Foundation (WCF) service listens for messages at net
tcpilwwwcontoso.comMMyService.
It has a logical address at http/Iwwwcontosocorn)MyService
The configuration for the WCF client is as follows
<endpoint addressrhTttpllwwwcontosocom/MyService"
bindinge"netTc pBinding"
bindingConfiguraton-NetTc pBinding_lMyService
contract="ServiceReference 1. IMyServce'
name='NetTcpBinding_lllyService"/>v
The generated configuration does not provide enough information for the client to communicate with the server.
You need to update the client so that it can communicate with the server what should you do

• A.In the client configuration, change the value of the address attribute to net.tcp:Ilwwwcontosocom/MyServicellisten=http:/Iwwwcontosocom/MyService.
• B.After instantiating the client and before invoking any service operation, add this line of code client Endpoint BehaviorsAdd( new EndpointDiscoveryBehawior0{ Enabled true });
• C.In the client configuration. Change the value of the address attribute to nettcp:/Iwwwcontosocom/MyService
• D.After instantiating the client and before invoking any service operation, add this line of code. client. Endpoint BehaviorsAdd( new Client ViaBehavior( new Uhcnet.tc pifwww.contoso. comiIMyService)))

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 SecurityPermission attribute to the method and set the SecurityAction to Demand.
• B.In the method body, check the Rights.PossessProperty property to see if it contains Manager.
• 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.Add a PrincipalPermission attribute to the method and set the Roles property to Manager.

You are developing a client application that consumes a Windows Communication Foundation (WCF) service.
You use the svcutil.exe utility to create a proxy for the service.
You use the svcutil.exe switches that generate asynchronous calls. GetFlight is a service operation that takes no parameters and returns a string. The GetFlightCallback method must be called when the service operation returns.
You create an instance of the client proxy with the following code.
var client = new TravelServiceClient();
You need to ensure that a callback is received when the GetFlight operation is called asynchronously.
Which code segment should you use?

• A.client.BeginGetFlight(GetFlightCallback, null); client.GetFlight();
• B.client.GetFlight(); client.BeginGetFlight(GetFlightCallback, null);
• C.IAsyncResult asyncResult = client.BeginGetFlight( GetFlightCallback, client); client.EndGetFlight(asyncResult);
• D.client.GetFlightCompleted += new EventHandler<GetFlightCompletedEventArgs>( GetFlightCallback); client.GetFlightAsync();