Microsoft TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4 : 70-513

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Microsoft 70-513 Exam Syllabus Topics:

Microsoft TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4 Sample Questions:

1. A WCF service code is implemented as follows. (Line numbers are included for reference only)
01 [ServiceContract]
02 [ServiceBehavior(lnstanceContextMode =
03 lnstanceContextModeSingle)]
04 public class CalculatorService
05 {
06 [OperationContract]
07 public double Calculate(double op1, string op. double op2)
08 {
24 }
25 }
You need to increase the rate by which clients get the required response from the service.
What e two possible ways to achieve this goal? (Each correct answer presents a complete sokiion
Choose two.)

A) Require the clients use threads, the Parallel Task Library, or other mechanism to issue service calls in parallel.
B) Change the service behavior to the following.
[ServiceBehavior(
lnstanceContextMode = lnstanceContextModeSingle,
ConcirrencyMode = ConcurrencyMode. Multide)]c
C) Change the service behavior to the following.
[ServiceBehavior(lnstanceContextMode = lnstanceContextMode.PerCall)]
D) Require the clients to use async operations when calling the senvice.

2. You are modifying an existing Windows Communication Foundation (WCF) service that is defined as follows.

SubmitOrder makes a call to another service. The ProcessMessage method does not perform as expected under a heavy load.
You need to enable processing of multiple messages. New messages must only be processed when the ProcessMessage method is not processing requests, or when it is waiting for calls to SubmitOrder to return.
Which attribute should you apply to the MessageProcessor class?

A) ServiceBehavior ( ConcurrencyMode = ConcurrencyMode.Multiple )
B) CallbackBehavior ( ConcurrencyMode = ConcurrencyMode.Reentrant )
C) CallbackBehavior ( ConcurrencyMode = ConcurrencyMode.Multiple )
D) ServiceBehavior ( ConcurrencyMode = ConcurrencyMode.Reentrant )

3. A Windows Communication Foundation (WCF) service is self-hosted in a console application. The service implements the ITimeService service interface in the TimeService class.
You need to configure the service endpoint for HTTP communication.
How should you define the service and endpoint tags?

A) Define the service tag as follows.
<service name=" ITimeService ">
Define the endpoint tag as follows.
< endpoint name=" TimeService "
address="http://localhost:8080/TimeService"
binding=" wsHttpBinding "
contract=" ITimeService "/ >
B) Define the service tag as follows.
<service name=" TimeService ">
Define the endpoint tag as follows.
<endpoint address="http://localhost:8080/TimeService"
binding=" wsHttpBinding "
contract=" ITimeService "/ >
C) Define the service tag as follows.
<service name=" TimeService ">
Define the endpoint tag as follows.
< endpoint kind=" TimeService "
address="http://localhost:8080/TimeService"
binding=" wsHttpBinding "
contract=" ITimeService " / >
D) Define the service tag as follows.
<service name=" ITimeService " >
Define the endpoint tag as follows.
< endpoint kind =" TimeService "
address="http://localhost:8080/TimeService"
binding=" wsHttpBinding "
contract=" ITimeService"/ >

4. You are developing a Windows Communication Foundation (WCF) service.
One of the service operations contains the following code.
private static int counter = 0;
[OperationContract]
public void IncrementCount()
[
counter++;
}
You need to set a service behavior that prevents two or more threads from incrementing the counter variable at the same time.
Which code segment should you use to set the service behavior?

A) [ServiceBehavior(
InstanceContextMode = InstanceContextMode.Single,
ConcurrencyMode = ConcurrencyMode.Single)]
B) [ServiceBehavior(
InstanceContextMode = InstanceContextMode.Single,
ConcurrencyMode = ConcurrencyMode.Hultiple)]
C) [ServiceBehavior(
InstanceContextMode = InstanceContextMode.PerCall,
ConcurrencyMode = ConcurrencyMode.Reentrant)]
D) [ServiceBehavior(
InstanceContextMode = InstanceContextMode.PerSession,
ConcurrencyMode = ConcurrencyMode.Single)]

5. DRAG DROP
You use Visual Studio to develop a Windows Communication Foundation (WCF) service. The service is not hosted.
You cannot use the WcfTestClient.exe tool to test the service.
You need to test the service from a separate Visual Studio solution that contains a simple console application.
Which four actions should you perform in sequence? (To answer, move the appropriate four actions from the list of actions to the answer area and arrange them in the correct order.)

Solutions: