Online Access Free 070-513 Exam Questions

A WCF service code is implemented as follows. (Line numbers are included for reference only.)
01 <ServiceContract()> 02 <ServiceBehavior( 03 InstanceContextMode:=InstanceContextMode.Single)> 04 Public Class CalculatorService 05 06 <OperationContract()> 07 Public Function Calculate(ByVal op1 As Double, 08 ByVal op As String, ByVal op2 As Double) As Double & 24 End Function 25 26 End Class
You need to decrease the response time of the service.
What are two possible ways to achieve this goal (Each correct answer presents a complete solution? Choose two.)

• A.Change the service behavior to the following. <ServiceBehavior(InstanceContextMode:=InstanceContextMode.PerCall)>
• B.Require the clients use threads, the Parallel Task Library, or other mechanism to issue service calls in parallel.
• C.Require the clients to use async operations when calling the service.
• D.Change the service behavior to the following. <ServiceBehavior( InstanceContextMode:=InstanceContextMode.Single, ConcurrencyMode:=ConcurrencyMode.Multiple)>

An ASP.NET application hosts a RESTful Windows Communication Foundation (WCF) service at /Services/Contoso.svc. The service provides a JavaScript resource to clients. You have an explicit reference to the JavaScript in your page markup as follows.
<script type="text/javaScript" src="/Services/Contoso.svc/js" />
You need to retrieve the debug version of the service JavaScript.
What should you do?

• A.In the script tag, add a debug attribute and set its value to true.
• B.In the <%@ Page %> header, set the Debug attribute to true.
• C.In the <%@ ServiceHost %> header for /Services/Contoso.svc, set the Debug attribute to true.
• D.In the script tag, append debug to the src attribute.

You develop a Windows Communication Foundation (WCF) service. You enable all
performance counters and run multiple calls to the service.
The service must isolate session data for each user.
You need to monitor the instancing behavior used in the service.
Which performance counter should you monitor?

• A.ASP.NET State Service\State Server Sessions Total
• B.ServiceModelService 4.0.0.0\Instances
• C.ServiceModelService 4.0.0.0\Calls
• D.ASP.NET State Service\State Server Sessions Active

A Windows Communication Foundation (WCF) service interacts with the database of a workflow engine. Data access authorization is managed by the database, which raises security exceptions if a user is unauthorized to access it.
You need to ensure that the application transmits the exceptions raised by the database to the client that is calling the service.
Which behavior should you configure and apply to the service?

• A.routing
• B.workflowUnhandledException
• C.serviceSecurityAudit
• D.serviceDebug

HOTSPOT
You are developing a Windows Communication Foundation (WCF) service. You implement a data contract to pass complex data to and from the service.
The service includes the following code: You need to verify the order in which the data is serialized.

For each of the following statements, select True if the statement is true. Otherwise, select False.

Correct Answer: