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Microsoft 070-503 Exam Syllabus Topics:

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. The service will be hosted on a Web server. You add the following code fragment to the .svc file. <% @ServiceHost Factory="ExamServiceFactory" Service="ExamService" %>
You need to create the 3 instances of the services by using the custom ExamServiceFactory class.
Which code segment should you use?

A) public class ExamServiceFactory : ServiceHostj public ExamServiceFactory(Type
serviceType, params Uri[] baseAddresses): base(serviceType, baseAddresses) {
//Implementation code comes here. }}
B) public class ExamServiceFactory : ServiceHostFactoryj protected override ServiceHost
CreateServiceHost(Type serviceType, Uri[] baseAddresses) {//Implementation code
comes here.}
C) public class ExamServiceFactory : ServiceHostBasej protected override void
ApplyConfigurationQ {//Implementation code comes here. }}
D) public class ExamServiceFactory : ServiceHostj protected override void
ApplyConfigurationO {
//Implementation code comes here. }}

2. You are creating a Windows Communication Foundation application by using Microsoft .NET Framework 3.5.
You create a service that provides access to the intranet file server of your company. Users must be able to update and delete files from the server by using the service.
You write the following code segment.

You need to ensure that files can be updated or deleted only by users with the required privileges defined in the server's file system ACLs. What should you do?

A) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperations="true" />
B) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperations="false" />
Decorate the Delete and Update methods of the IFileServer interface by using the following
attribute.
[OperationBehavior(Impersonation=ImpersonationOption.Required)]
C) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperations="false" />
Decorate the Delete and Update methods of the FileServer class by using the following
attribute.
[OperationBehavior(Impersonation=ImpersonationOption.Required )]
D) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperations="true" />
Decorate the Delete and Update methods of the IFileServer interface by using the following
attribute.
[OperationBehavior(Impersonation=ImpersonationOption.Alloraed)]

3. You are creating a distributed application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation (WCF) to create the application.
The distributed application contains client applications and a WCF service.
The client applications send e-mail address claims to the WCF service. The custom authorization manager of the service examines whether the claims are of the type "http://contoso.com/ClaimTypes/UserStatus".
You write the following code segment. (Line numbers are included for reference only.)

You need to map the claim types that are provided by the client applications to the claim
types that are expected by the custom authorization manager of the service. Which code segment should you insert at line 14?

A) Option B
B) Option D
C) Option A
D) Option C

4. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
The service will be hosted on a Web server.
You need to ensure that the service is able to access the current HttpContext instance. Which configuration settings and attribute should you use?

A) Option B
B) Option D
C) Option A
D) Option C

5. 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.PerCall)]
public class serviceImpl : MyService
{
public void DoSomething(){ }
}
B) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple,
InstanceContextMode=InstanceContextMode.Single)]
public class serviceImpl : MyService
{
public void DoSomething(){ }
}
C) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Single,
InstanceContextMode=InstanceContextMode.Single)]
public class serviceImpl : MyService
{
public void DoSomething(){ }
}
D) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple,
InstanceContextMode=InstanceContextMode.PerSession)]
public class serviceImpl : MyService
{
public void DoSomething(){ }
}

Solutions: