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You are creating a Windows Communication Foundation （WCF） service that implements the following service contract. Public Interface IOrderProcessing Sub ApproveOrder（ByVal id As Integer）For interactive and self-paced preparation of exam 70-513， try our practice exams. Practice exams also include self assessment and reporting features!End Interface You need to ensure that only users with the Manager role can call the ApproveOrder method. What should you do？（）

A. In the method body， check the Rights.PosessesProperty property to see if it contains manager.
B. Add a PrincipalPermission attribute to the method and set the Roles property to Manager.
C. Add a SecurityPermission attribute to the method and set the SecurityAction to Demand.
D. In the method body， create a new instance of WindowsClaimSet.

單項(xiàng)選擇題

You are creating a Windows Communication Foundation （WCF） service that accepts messages from clients when they are started. The message is defined as follows. [MessageContract] public class Agent { public string CodeName { get； set； }public string SecretHandshake { get； set； } } You have the following requirements： "The CodeName property must be sent in clear text. The service must be able to verify that the property value was not changed after being sent by the client. "The SecretHandshake property must not be sent in clear text and must be readable by the service. What should you do？（）

A. Add a MessageBodyMember attribute to the CodeName property and set the ProtectionLevel to Sign. Add a MessageBodyMember attribute to the SecretHandshake property and set the protectionLevel to EncryptAndSign.
B. Add a DataProtectionPermission attribute to the each property and set the ProtectData property to true.
C. Add an XmlText attribute to the CodeName property and set the DataType property to Signed. add a PasswordPropertyText attribute to the SecretHandshake property and set its value to true.
D. Add an ImmutableObject attribute to the CodeName property and set its value property to true. Add a Browsable attribute to the SecretHandshake property and set its value to false.

單項(xiàng)選擇題

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. For interactive and self-paced preparation of exam 70-513， try our practice exams. Practice exams also include self assessment and reporting features!
C. On the client， create a proxy derived from DuplexClientBase（Of TChannel）.
D. On the client， use GetCallbackChannel（Of T）.

單項(xiàng)選擇題

A Windows Communication Foundation （WCF） solution exposes the following contract over an HTTP connection. Function GetData（） As String End Interface Existing clients are making blocking calls to GetData. Calls to GetData take five seconds to complete. You need to allow new clients to issue non-blocking calls to get the data， without breaking any existing clients. What should you do？（）

A.
B.
C.Generate a proxy class with asynchronous methods and use it for the new clients.
D.Add a new endpoint to the service that uses a full-duplex binding and use it for the new clients.

單項(xiàng)選擇題

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 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？（）For interactive and self-paced preparation of exam 70-513， try our practice exams. Practice exams also include self assessment and reporting features!

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 SignAndEncrypt.
C. Change the data type of CreditCardNumber from string to SecureString.
D. Implement the CreditCardNumber property getter and setter.

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MCPDMCPD(70-513)單項(xiàng)選擇題每日一練(2019.03.21)

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？（）

MCPDMCPD(70-513)單項(xiàng)選擇題每日一練(2019.03.21)

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 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？（）