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Microsoft 070-513 Exam Syllabus Topics:

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

1. 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 A
B) Option D
C) Option C
D) Option B

2. You develop a Windows Communication Foundation (WCF) service to generate reports. Client applications call the service to initiate report generation but do not wait for the reports to be generated. The service does not provide any status to the client applications.
The service class is defined as follows. (Line numbers are included for reference only.)
01 <ServiceContract()> 02 Public Class ReportGeneratorService 03 04 Private Function GenerateReports( ByVal clientID As Integer) As Integer 05 & 06 Return 0 07 End Function 08 09 End Class
You need to ensure that client applications can initiate reports without waiting for status.
Which two actions should you perform (Each correct answer presents part of the solution. Choose two.)

A) Insert the following code at line 03. <OperationContract(IsOneWay:=True)>
B) Insert the following code at line 03. <OperationContract(AsyncPattern:=False)>
C) Remove line 06. At line 04, change the type of GenerateReports method to Sub. Remove the code As Integer from the method definition.
D) At line 04, change the GenerateReports method from Private to Public.

3. You are developing a client that sends several types of SOAP messages to a Windows Communication
Foundation (WCF) service method named PostData PostData is currently defined as follows
<OperationContract>
Sub PostData(Byval data As Order) You need to modify PostData so that it can receive any SOAP message.
Which code segment should you use?

A) <OperationContract0> Sub PostData(ByVal data As Message)
B) <OperationContract> Sub PostData(Byval data As BodyWriter)
C) OperationContract(lsOneway: zTrue, Action:z'-', ReplyAction: z"-')> Sub PostData(ByVal data As BodyWriter)
D) <OperationContract(lsOneWay True, Action ReplyAction '-)> Sub PostData(ByVal data As Order)

4. You are developing a Windows Communication Foundation (WCF) service to replace an existing A5MX 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.

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

5. A client application calls a Windows Communication Foundation (WCF) service with a proxy class that was generated by Visual Studio.
The service binding was changed from wsHttpBinding to basicHttpBinding. The method signatures in the service contract are changed.
After these changes, the client application receives errors when calling methods on the service.
You need to ensure that the client can invoke methods on the service successfully.
What should you do?

A) Update the configuration file to use basicHttpBinding.
B) Update the service reference.
C) Copy the configuration file elements under the <system.servicelviodel> element from the service back to the client.
D) Enable anonymous authentication for the service.

Solutions: