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Code d'Examen: 070-515
Nom d'Examen: Microsoft (TS: Web Applications Development with Microsoft .NET Framework 4)
Questions et réponses: 186 Q&As
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
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NO.1 A Windows Communication Foundation (WCF) service has a callback contract. You are developing a
client application that will call this service.
You must ensure that the client application can interact with the WCF service.
What should you do?
A. On the OperationContractAttribute, set the AsyncPattern property value to True.
B. On the OperationContractAttribute, set the ReplyAction property value to the endpoint address of the
client.
C. On the client, create a proxy derived from DuplexClientBase(Of TChannel).
D. On the client, use GetCallbackChannel(Of T).
Answer: C
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NO.2 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.3 A Windows Communication Foundation (WCF) service has the following contract.
<ServiceContract(Namespace:="http://contoso.com")>
Public Interface IShipping
<OperationContract()>
Function DoWork(ByVal id As Integer) As String
End Interface
This is one of several service contracts hosted by your application. All endpoints use SOAP 1.2 bindings
with WS-Addressing 1.0. The System.ServiceModel.MessageLogging trace source in the
system.diagnostics configuration section is configured with one listener.
You need to make sure that only the messages that are returned from the DoWork operation are logged.
Which XML segment should you add to the system.serviceModel/diagnostics/messageLogging/filters
configuration element?
A. <add xmlns:addr="http://www.w3.org/2005/08/addressing">
//addr:Action[text() =
'http://contoso.com/IShipping/DoWorkResponse']
</add>
B. <add xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
//soap:Action[text() =
'http://contoso.com/IShipping/DoWorkResponse']
</add>
C. <add xmlns:addr="http://www.w3.org/2005/08/addressing">
//addr:Action[text() =
'http://contoso.com/IShipping/DoWork']
</add>
D. <add xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
//soap:Action[text() =
'http://contoso.com/IShipping/DoWork']
</add>
Answer: A
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NO.4 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.5 </behaviors>
You need to configure the service to publish the service metadata.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A. Add the following XML segment between lines 10 and 11.
<endpoint address=""
binding="mexHttpBinding"
contract="IMetadataExchange"
/>
B. Add the following XML segment between lines 10 and 11.
<endpoint address=""
binding="basicHttpBinding"
contract="IMetadataExchange"
/>
C. Add the following XML segment between lines15 and 16.
<serviceDiscovery>
<announcementEndpoints>
<endpoint address=""/>
</announcementEndpoints>
</serviceDiscovery>
D. Add the following XML segment between lines 15 and 16
<serviceMetadata httpGetEnabled="true"/>
Answer: AD
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17. Four Windows Communication Foundation (WCF) services are hosted in Microsoft Internet
Information Services (IIS). No behavior configuration exists in the web.config file.
You need to configure the application so that every service and endpoint limits the number of concurrent
calls to 50 and the number of concurrent sessions to 25.
Which XML segment should you add to the system.serviceModel configuration section of the web.config
file?
A. <behaviors>
<serviceBehaviors>
<behavior name="*">
<serviceThrottling maxConcurrentCalls="50" maxConcurrentSessions="25"/>
</behavior>
</serviceBehaviors>
</behaviors>
B. <behaviors>
<serviceBehaviors>
<behavior name="default">
<serviceThrottling maxConcurrentCalls="50" maxConcurrentSessions="25"/>
</behavior>
</serviceBehaviors>
</behaviors>
C. <behaviors>
<serviceBehaviors>
<behavior name="">
<serviceThrottling maxConcurrentCalls="50" maxConcurrentSessions="25"/>
</behavior>
</serviceBehaviors>
</behaviors>
D. <behaviors>
<serviceBehaviors>
<behavior name="ALL">
<serviceThrottling maxConcurrentCalls="50" maxConcurrentSessions="25"/>
</behavior>
</serviceBehaviors>
</behaviors>
Answer: C
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18. The endpoint of a Windows Communication Foundation (WCF) service uses basicHttpBinding for its
binding. Your company's policies have changed to require that messages not be sent in clear text.
You must ensure that all messages are encrypted when traveling across the network.
What should you do?
A. Set the ProtectionLevel property on the service contract and update the binding attribute in the
endpoint element of the configuration file to wsHttpBinding.
B. Set the ProtectionLevel property on the service contract and update the bindingConfiguration attribute
in the endpoint element of the configuration file to webHttpBinding.
C. Set the PrincipalPermissionAttribute on the service contract and update the binding attribute in the
endpoint element of the configuration file to wsHttpBinding.
D. Set the PrincipalPermissionAttribute on the service contract and update the bindingConfiguration
attribute in the endpoint element of the configuration file to wsHttpBinding.
Answer: A
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NO.6 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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NO.7 A Windows Communication Foundation (WCF) service is responsible for transmitting XML documents
between systems. The service has the following requirements:
It must minimize the transmission size by attaching the XML document as is without using escape
characters or base64 encoding.
It must interoperate with systems that use SOAP but are not built on the .NET platform.
You need to configure the service to support these requirements.
Which message encoding should you use?
A. Binary message encoding
B. MTOM (Message Transmission Optimization Mechanism) message encoding
C. Text message encoding with message version set to none
D. Text message encoding with message version set to SOAP 1.2
Answer: B
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NO.8 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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