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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 have an existing Windows Communication Foundation (WCF) Web service. The Web service is not responding to messages larger than 64 KB.
You need to ensure that the Web service can accept messages larger than 64 KB without generating errors.
What should you do?

A) Increase the value of maxBufferSize on the endpoint binding.
B) Increase the value of maxRequestLength on the httpRuntime element.
C) Increase the value of maxBufferPoolSize on the endpoint binding.
D) Increase the value of maxReceivedMessageSize on the endpoint binding.

2. A WCF service code is implemented as follows. (Line numbers are included for reference only.)
01 <ServiceContract()> 02 <ServiceBehavior( 03 InstanceContextMode:=InstanceContextMode.Single)> 04 Public Class CalculatorService 05 06 <OperationContract()> 07 Public Function Calculate(ByVal op1 As Double, 08 ByVal op As String, ByVal op2 As Double) As Double & 24 End Function 25 26 End Class
You need to decrease the response time of the service.
What are two possible ways to achieve this goal (Each correct answer presents a complete solution? Choose two.)

A) Require the clients to use async operations when calling the service.
B) Change the service behavior to the following. <ServiceBehavior(InstanceContextMode:=InstanceContextMode.PerCall)>
C) Change the service behavior to the following. <ServiceBehavior( InstanceContextMode:=InstanceContextMode.Single, ConcurrencyMode:=ConcurrencyMode.Multiple)>
D) Require the clients use threads, the Parallel Task Library, or other mechanism to issue service calls in parallel.

3. You are creating a windows Communication Foundation (WCF) service to process orders.
The data contract for the order is defined as follows:
[DataContract]>
public class Order
{
[DataMemberl ()>
public string CardHolderName { get; set;
[DataMember] >
public string CreditCardNumber { get; set; }
)
You have the following requirements:
- Enable the transmission of the contents of Order from the clients to the service.
- Ensure that the contents of CreditCardNumber are not sent across the network in clear text.
- Ensure that the contents of CreditCardNumber are accessible by the service to process the order.
You need to implement the service to meet these requirements
What should you do?

A) Implement the CreditCardNumber property getter and setter In the setter, run the value of the CreditCardNumber through the MD5CryptoServiceProvider class TransformBlock method
B) Change the data type of CreditCardNumber from string to SecureString
C) Convert the DataContract to a MessageContract and set the ProtectionLevel property to SignAndEncrypt
D) Add a DataProtectionPermission attribute to the CreditCardNumber property and set the ProtectData property to true.

4. You are hosting a Windows Communication Foundation (WCF) service under Microsoft Internet Information Services (IIS) 7.0.
You have set up a Web site in IIS Manager. The physical path is C:\wwwroot\Calendar. There is a Calendar.svc file in the C:\wwwroot\Calendar folder. It contains the following directive.
<%@ ServiceHost Language="VB" Debug="true" Service="Calendar.Calendar" CodeBehind="Calendar.svc.vb" %>
The Calendar.svc.vb file contains the source for the Calendar class in the Calendar namespace. You compile this code into the Calendar.dll file.
You need to deploy your service to the Web site.
What should you do?

A) Copy the Calendar.svc.vb file to the C:\wwwroot\Calendar\code folder.
B) Copy the Calendar.svc.vb file to the C:\wwwroot\Calendar\bin folder.
C) Copy the Calendar.dll file to the C:\wwwroot\Calendar\code folder.
D) Copy the Calendar.dll file to the C:\wwwroot\Calendar\bin folder.

5. You are developing a Windows Communication Foundation (WCF) service that is hosted by a Windows Forms application.
The ServiceHost instance is created in the Form constructor.
You need to ensure that the service is not blocked while the UI thread is busy.
What should you do?

A) Decorate the service implementation class with the following line of code.
[ServiceBehavior(
ConcurrencyMode = ConcurrencyMode.Multiple)]
B) Call the BeginInvoke method of the form and supply a delegate.
C) Decorate the service implementation class with the following line of code.
[ServiceBehavior(
UseSynchronizationContext = false)]
D) Call the Invoke method of the form and supply a delegate.s

Solutions: