Online Access Free 70-513 Exam Questions

You develop a Windows Communication Foundation (WCF) service that employees use to access bonus information. You define the following service contract. (Line numbers are included for reference only.)
01 [ServiceContract(SessionMode = SessionMode.Required)]
02 public interface IFinancialService
03 {
04 [OperationContract]
05 string Login(int employeeID, string passwordHash);
06
07 [OperationContract]
08 double GetBonus(int month);
09
10 [OperationContract(IsTerminating = true)]
11 void Logout();
12 }
Client applications can invoke methods without logging in.
You need to ensure that the client applications invoke Login before invoking any other method.
You also need to ensure that client applications cannot consume the service after invoking Logout.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

• A.Replace line 04 with the following code. [OperationContract(IsInitiating = true, IsTerminating = true)]
• B.Replace line 07 with the following code. [OperationContract(IsInitiating = false)]
• C.Replace line 10 with the following code. [OperationContract(IsInitiating = false, IsTerminating = true)]
• D.Replace line 04 with the following code. [OperationContract(IsInitiating = false)]

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 client, use GetCallbackChannel (Of T).
• B.On the client, create a proxy derived from DuplexClientBase(Of TChannel).
• C.On the OperationContractAttribute, set the AsyncPattern property value to True.
• D.On the OperationContractAttribute, set the ReplyAction property value to the endpoint address of the client.

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

You develop a Windows Communication Foundation (WCF) service that interacts with Microsoft Message Queuing (MSMQ).
The service requires sessions. You need to create a custom binding that enables messages sent to the queue to be viewed when you are using a listener tool.
Which binding elements should you use?

• A.msmqTransport and textMessageEncoding in this order
• B.msmqIntegrationTransport and textMessageEncoding in this order
• C.textMessageEncoding and msmqIntegrationTransport in this order
• D.textMessageEncoding and msmqTransport in this order

You are developing a Windows Communication Foundation (WCF) service.
You need to enable security auditing for all events.
What should you do?

• A.Set the messageAuthenticationAuditLevel setting to Success and the auditLogLocation setting to Application.
• B.Set the serviceAuthorizationAuditLevel setting to Success and the messageAuthenticationAuditLevel setting to Success.
• C.Set the serviceAuthorizationAuditLevel setting to SuccessAndFailure and the messageAuthenticationAuditLevel setting to SuccessAndFailure.
• D.Set the messageAuthenticationAuditLevel setting to SuccessAndFailure and the auditLogLocation setting to Security.