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Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation Sample Questions:
1. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You create the following service contract.
[ServiceContract]
public interface IMyService
{
[OperationContract]
void DoSomething();
}
The service will not use any external resources.
You need to ensure that the calls to the DoSomething operation are thread-safe.
What are the two possible service implementations that you can use to achieve this goal?
(Each correct answer presents a complete solution. Choose two.)
A) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple,
InstanceContextMode=InstanceContextMode.Single)]
public class serviceImpl : MyService
{
public void DoSomething(){ }
}
B) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple,
InstanceContextMode=InstanceContextMode.PerSession)]
public class serviceImpl : MyService
{
public void DoSomething(){ }
}
C) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple,
InstanceContextMode=InstanceContextMode.PerCall)]
public class serviceImpl : MyService
{
public void DoSomething(){ }
}
D) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Single,
InstanceContextMode=InstanceContextMode.Single)]
public class serviceImpl : MyService
{
public void DoSomething(){ }
}
2. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You need to host the service in a medium trust environment on a Web server.
Which two bindings should you use? (Each correct answer presents a complete solution. Choose two.)
A) NetMsmqBinding
B) WebHttpBinding
C) WSDualHttpBinding
D) BasicHttpBinding
E) NetTcpBinding
3. You are creating a Windows Communication Foundation (WCF) client application by using Microsoft .NET Framework 3.5.
The application uses the XML data format to exchange data with the service.
You plan to change the data format to JavaScript Object Notation (JSON).
You need to ensure that the client application can access the JSON WCF service.
What should you do?
A) Option D
B) Option C
C) Option A
D) Option B
4. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
You need to use a custom service host to host the WCF service in Windows Activation Services (WAS).
What should you do?
A) Add a reference to the custom service host in the web.config file.
B) Write hosting code for the WCF service.
C) Add code to instantiate the custom service host from within the main procedure of the WCF service.
D) Create a custom service host factory that instantiates the custom service host. Include a reference to this factory in the .svc file.
5. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service is hosted in a managed application.
You need to perform the following tasks:
Publish the service on the following address: net.tcp://localhost:8080/ExamService
Publish the metadata on the following address:
http://localhost:8081/ExamService/metadata?wsdl
Which code fragment should you use?
A) Option D
B) Option C
C) Option A
D) Option B
Solutions:
Question # 1 Answer: C,D | Question # 2 Answer: B,D | Question # 3 Answer: D | Question # 4 Answer: D | Question # 5 Answer: C |