70-503 무료 덤프문제 온라인 액세스

You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You write the following code segment.

You need to ensure that concurrent calls are allowed on the service instance.
Which code segment should you insert at line 07?

• A.[ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Reentrant, ReleaseServiceInstanceOnTransactionComplete=true)]
• B.[ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple, ReleaseServiceInstanceOnTransactionComplete=false)]
• C.[ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Reentrant, ReleaseServiceInstanceOnTransactionComplete=false)]
• D.[ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple, ReleaseServiceInstanceOnTransactionComplete=true)]

You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service will contain an enumeration named OrderState.
The OrderState enumeration will contain the following four values:
The client application must be able to set the state of an Order entity to only the following
two values:
You need to create the data contract for OrderState. Which code segment should you use?

• A.Option D
• B.Option A
• C.Option C
• D.Option B

You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You add the following code segment to a configuration file. (Line numbers are included for reference only)
01 <configuration> 02 <system.serviceModel>
04 </system.serviceModel>
05 </configuration
You need to enable the performance counters to monitor the ServiceModelOperation object of the service.
You also need to ensure that the performance counters are disabled for all other services.
What should you do?

• A.Add the following code fragment at line 03 in the machine.config file. <diagnosticsperformanceCounters="ServiceOnly" />
• B.Add the following code fragment at line 03 in the app.config file. <diagnosticsperformanceCounters="All" />
• C.Add the following code fragment at line 03 in the machine.config file. <diagnosticsperfocmanceCounters="All" />
• D.Add the following code fragment at line 03 in the app.config file. <diagnosticsperfocmanceCounters="ServiceOnly" />

You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. The service will be hosted on a Web server. You plan to deploy the service in an existing Web application.
You need to identify the Web applications on the Web server that are registered for WCF.
Which utility should you use?

• A.SvcConfigEditor.exe
• B.SvcUtil.exe
• C.SvcTraceViewer.exe
• D.ServiceModelReg.exe

You are creating a Windows Communication Foundation (WCF) client application by using Microsoft .NET Framework 3.5.
The proxy generated for the WCF service results in the following code segment.

To implement a callback interface, you create the following class in the client application.
public class StoreCallback: IStoreCallback{ }
The client application receives notifications from the service through the callback interface.
You write the following code segment for the client application to use the generated proxy.
(Line numbers are included for reference only.)
02 client.CheckAvailableProducts();
You need to set up duplex communication between the client application and the WCF
service.
Which code segment should you insert at line 01?

• A.Option D
• B.Option A
• C.Option C
• D.Option B