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Microsoft 70-513 Exam Syllabus Topics:

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

1. You are developing a new version of an existing message contract named CustomerDetailsVersion1.
The new version of the message contract must add a Department field of type String to the SOAP header.
You create a new class named GustomerDetailsVersion2 that inherits from CustomerDetailsVersion1.
You need to ensure that all client applications can consume the service.
Which code segment should you use?

A) [MessageContract]
public class CustomerDetailsVersion2 : CustomerDetailsVersion1
{
[MessageHeader(MustUnderstand = true)]
public string Department;
}
B) [MessageContract]
public class CustomerDetailsVersion2 : CustomerDetailsVersion1
{
[MessageHeader(MustUnderstand = false)]
public string Department;
}
C) public class CustomerDetailsVersion2 : CustomerDetailsVersion1 { [MessageHeader(MustUnderstand = true)] public string Department; }
D) public class CustomerDetailsVersion2 : CustomerDetailsVersion1 { [ MessageHeader( MustUnderstand = false ) ] public string Department; }

2. You are developing a client that sends several types of SOP 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 SO6P message which code segment should you use

A) (OperationContract(1sOneWay = true, Action "v', ReplyAction = ".') addPostData(BodyWriterdata);
B) [OperaionContract] void PostDaa(BodyWriter data);
C) [OperaionContract0sOneWay true, Action = 'v', ReplyAction void PostData(Order data);
D) [OperationContract] void PostDaa(Message data);

3. You are developing a Windows Communication Foundation (WCF) service. You write a method named Submit that accepts messages of the type System.ServiceModel.Channels.Message.
You need to process the body of the incoming messages multiple times in the method.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Use the CreateBufferedCopy method of the Message class to load the messages into memory.
B) Use the CreateMessage method of the MessageBuffer class to make a copy of the messages.
C) Use the WriteBodyContents method of the BodyWriter class to make a copy of the messages.
D) Use the GetBody method of the Message class to read the content of the messages.

4. You are developing a Windows Communication Foundation (WCF) service that executes a long-running operation.
The service is accessed from your business applications in a server transaction in which the client does not participate.
You need to ensure that the transaction times out and aborts if the operation has not completed within 45 seconds.
What should you do?

A) Set the service binding receiveTimeout attribute to 00:00:45.
B) Set the service binding sendTimeout attribute to 00:00:45.
C) Apply OerviceBehavior (TransactlonTiitieout: = "00:00:45")> to the service
implementation.
D) Apply <OperationBehavior (TransactionScopeRequired:=False) > to the service operation.

5. 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 [ServiceContract]
02public interface ITeamMessageService
03{
04 [OperationContract]
05string GetMessage0;
07 [OperationContract]
08void PutMessage(string message);
09)
The code for the service class is as follows
10 public class TeamMessageService: ITeamMessageService
1 1{
12Guid key = GuicLNewGuidO;
1 3string message = "Today's Message":
1 4public string GetMessage()
i5{
16 return stringFormat("Message:{0} Key:{1}",
message, Key);
1n
1 9public void PutMessage(string message)
20{
2lthismessage = message;
22}
23)
The senvice is self-hosted. The hosting code is as follows.
24 ServiceHost host =
25BasicHttpBinding binding =
new BasicHttpBinding(BasicHttpSecuntyMode.None):
26 host AddServiceEndpoint(
HMyApplication lTeamMessageService, binding,
"http:/Ilocalhost: 12345w);
27 host Open0;)
You need to ensure that all clients calling GetMessage will retrieve the same string, even if the message is updated by clients calling PutMessage
What should you do?

A) Add the following attribute to the TeamMessageService class, before line 10.
[ServiceBehavior(lnstanceContextMode = lnstanceContextModePerSession)J Then
change the binding definition on the service at line 25, and on the client to the following
WSHttpBinding binding new
WSHttpBinding(SecurityModeNone);
binding ReliableSession. Enabled true;
B) Pass a service instance to the instancing code in line 24, as follows.
ServiceHost host = new ServiceHost(new TeamMessageServiceO);
C) Add the following attribute to the TeamMessageService class, before line 10.
[ServiceBehavior(lnstanceContextMode = lnstanceContextMode. Single)]
D) Redefine the message string in line 13, as follows
static string message = 'Today's Message":
Then change the implementation of PutMessage in lines 19-22 to the following
public void PutMessage(string message) { TeamMessageServicemessage message,
}

Solutions: