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Code d'Examen: 070-521-VB
Nom d'Examen: Microsoft (UPG:Trans MCPD.NET Frmwk 3.5 Dev Skil to .NET 4 Wndws App De)
Questions et réponses: 115 Q&As
Code d'Examen: 74-338
Nom d'Examen: Microsoft (Lync 2013 Depth Support Engineer Exam)
Questions et réponses: 114 Q&As
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NO.1 A Windows Communication Foundation (WCF) client uses the following service contract. (Line
numbers are included for reference only.)
01 <ServiceContract()>
02 Public Interface IService
03
04 <OperationContract()>
05 Function Operation1() As String
06 <OperationContract()>
07 Function Operation2() As String
08
09 End Interface
You need to ensure that all calls to Operation1 and Operation2 from the client are encrypted and signed.
What should you do?
A. Set the ProtectionLevel property in line 01 to EncryptAndSign.
B. Set the ProtectionLevel property in line 04 and line 06 to Sign.
C. Add a SecurityCriticalAttribute for each operation.
D. Add a SecuritySafeCriticalAttribute for each operation.
Answer: A
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NO.2 You are creating a Windows Communication Foundation (WCF) service that is implemented as follows.
(Line numbers are included for reference only.)
01 <ServiceContract()>
02 <ServiceBehavior(IncludeExceptionDetailInFaults:=True)>
03 Public Class OrderService
04
05 <OperationContract()>
06 Public Sub SubmitOrder(ByVal anOrder As Order)
07
08 Try
09
10 Catch ex As DivideByZeroException
11
12 End Try
13 End Sub
14
15 End Class
You need to ensure that the stack trace details of the exception are not included in the error information
sent to the client.
What should you do?
A. Replace line 11 with the following line.
Throw
B. Replace line 11 with the following line.
Throw New FaultException(Of Order)(anOrder, ex.ToString())
C. After line 05, add the following line.
<FaultContract(GetType(FaultException(Of Order)))>
Replace line 11 with the following line.
Throw ex
D. After line 05, add the following line.
<FaultContract(GetType(FaultException(Of Order)))>
Replace line 11 with the following line.
Throw New FaultException(Of Order)(
anOrder, "Divide by zero exception")
Answer: D
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NO.3 You are building a client for a Windows Communication Foundation (WCF) service.
You need to create a proxy to consume this service.
Which class should you use?
A. ChannelFactory(Of TChannel)
B. ServiceHost
C. ClientRuntime
D. CommunicationObject
Answer: A
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NO.4 You are developing an application to update a user s social status. You need to consume the service
using Windows Communication Foundation (WCF).
The client configuration is as follows.
<system.serviceModel>
<bindings>
<webHttpBinding>
<binding name="SocialConfig">
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Basic"
?realm="Social API" />
</security>
</binding>
</webHttpBinding>
</bindings>
<client>
<endpoint address="http://contoso.com"
binding="webHttpBinding"
bindingConfiguration="SocialConfig"
contract="ISocialStatus"
name="SocialClient" />
</client>
</system.serviceModel>
The service contract is defined as follows.
<ServiceContract()>
Public Interface ISocialStatus
<OperationContract()>
<WebInvoke(UriTemplate:="/statuses/update.xml?status={text}")>
Sub UpdateStatus(ByVal text As String)
End Interface
Which code segment should you use to update the social status?
A. Using factory As WebChannelFactory(Of ISocialStatus) =
New WebChannelFactory(Of ISocialStatus)("SocialClient")
factory.Credentials.UserName.UserName = user.Name
factory.Credentials.UserName.Password = user.Password
Dim socialChannel As ISocialStatus = factory.CreateChannel()
socialChannel.UpdateStatus(newStatus)
End Using
B. Using factory As ChannelFactory(Of ISocialStatus) =
New WebChannelFactory(Of ISocialStatus)(GetType(ISocialStatus))
factory.Credentials.UserName.UserName = user.Name
factory.Credentials.UserName.Password = user.Password
Dim socialChannel As ISocialStatus = factory.CreateChannel()
socialChannel.UpdateStatus(newStatus)
End Using
C. Using factory As ChannelFactory(Of ISocialStatus) =
New ChannelFactory(Of ISocialStatus)("POST")
factory.Credentials.Windows.ClientCredential.UserName =
user.Name
factory.Credentials.Windows.ClientCredential.SecurePassword.SetAt(
0, user.Password)
Dim socialChannel As ISocialStatus = factory.CreateChannel()
socialChannel.UpdateStatus(newStatus)
End Using
D. Using factory As WebChannelFactory(Of ISocialStatus) =
New WebChannelFactory(Of ISocialStatus)(GetType(ISocialClient))
factory.Credentials.Windows.ClientCredential.UserName =
user.Name
factory.Credentials.Windows.ClientCredential.SecurePassword.SetAt(
0, user.Password)
Dim socialChannel As ISocialStatus = factory.CreateChannel()
socialChannel.UpdateStatus(newStatus)
End Using
Answer: A
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NO.5 A Windows Communication Foundation (WCF) application uses a data contract that has several data
members.
You need the application to throw a SerializationException if any of the data members are not present
when a serialized instance of the data contract is deserialized.
What should you do?
A. Add the KnownType attribute to the data contract. Set a default value in each of the data member
declarations.
B. Add the KnownType attribute to the data contract. Set the Order property of each data member to
unique integer value.
C. Set the EmitDefaultValue property of each data member to False.
D. Set the IsRequired property of each data member to True.
Answer: D
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NO.6 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
<DataMember()>
Public Property CardHolderName As String
<DataMember()>
Public Property CreditCardNumber As String
End Class
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. Add a DataProtectionPermission attribute to the CreditCardNumber property and set the ProtectData
property to True.
B. Convert the DataContract to a MessageContract and set the ProtectionLevel property to
EncryptAndSign.
C. Change the data type of CreditCardNumber from String to SecureString.
D. Implement the CreditCardNumber property getter and setter. In the setter, run the value of the
CreditCardNumber through the MD5CryptoServiceProvider class TransformBlock method.
Answer: B
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NO.7 You are adding a Windows Communication Foundation (WCF) service to an existing application. The
application is configured as follows. (Line numbers are included for reference only.)
01 <configuration>
02 <system.serviceModel>
03 <services>
04 <service name="Contoso.Sales.StockService"
05 behaviorConfiguration="MetadataBehavior">
06 <host>
07 <baseAddresses>
08 <add
baseAddress="http://contoso.com:8080/StockService" />
09 </baseAddresses>
10 </host>
11 </service>
12 </services>
13 <behaviors>
14 <serviceBehaviors>
15 <behavior name="MetadataBehavior">
16 </behavior>
NO.8 You are creating a Windows Communication Foundation (WCF) service. You do not want to expose the
internal implementation at the service layer. You need to expose the following class as a service named
Arithmetic with an operation named Sum.
Public Class Calculator
Public Function Add(ByVal x As Integer,
ByVal y As Integer) As Integer
End Function
End Class
Which code segment should you use?
A. <ServiceContract(Namespace:="Arithmetic")>
Public Class Calculator
<OperationContract(Action:="Sum")>
Public Function Add(ByVal x As Integer,
ByVal y As Integer) As Integer
End Function
End Class
B. <ServiceContract(ConfigurationName:="Arithmetic")>
Public Class Calculator
<OperationContract(Action:="Sum")>
Public Function Add(ByVal x As Integer,
ByVal y As Integer) As Integer
End Function
End Class
C. <ServiceContract(Name:="Arithmetic")>
Public Class Calculator
<OperationContract(Name:="Sum")>
Public Function Add(ByVal x As Integer,
ByVal y As Integer) As Integer
End Function
End Class
D. <ServiceContract(Name:="Arithmetic")>
Public Class Calculator
<OperationContract(ReplyAction:="Sum")>
Public Function Add(ByVal x As Integer,
ByVal y As Integer) As Integer
End Function
End Class
Answer: C
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