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. 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 create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You create the following service contract.
[ServiceContract]
public interface IMath
{
[OperationContract]
int Add(int num1, int num2);
}
You need to add an operation contract to perform the Add operation asynchronously. Which operation contract should you use?

A) [OperationContract]IAsyncResult BeginAdd(int num1, int num2);[OperationContract]int EndAdd (IAsyncResult res);
B) [OperationContract(AsyncPattern=true)]IAsyncResult BeginAdd(int num1, int num2,
AsyncCallback cb,
object state);int EndAdd(IAsyncResult res);
C) [OperationContract(AsyncPattern=true)]IAsyncResult BeginAdd(int num1, int num2);int EndAdd (IAsyncResult res);
D) [OperationContract]int BeginAdd(int num1, int num2, AsyncCallback cb, object state);IAsyncResult EndAdd ();

3. You are creating a Windows Communication Foundation distributed application by using Microsoft .NET Framework 3.5. You write the following code segment to implement the service contract. (Line numbers are included for reference only.)

You need to ensure that the client applications of only those users who belong to the Administrators group can access the RemoveOrder method.
Which code segment should you insert at line 05?

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

4. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. The WCF service will validate certificates to authorize
client applications. You write the following code segment. Class Store Implements IStore Public Sub RemoveOrder(ByVal ordered As Integer) _
Implements IStore. RemoveOrder End Sub End Class You need to ensure that only
those client applications that meet the following criteria can access the RemoveOrder method: "AdminUser" is the subject in the client certificate.
"1 bf47e90O0acf4c0089cda65e0aadcf1 cedd592" is the thumbprint in the client certificate. What should you do?

A) Decorate the RemoveOrder method by using the following attribute.
<PrincipalPermission(SecurityAction. Demand,
_Role:="CN=AdminUser,1bf47e9000acf4c0089cda65eOaadcf1cedd592")> _ Initialize the
serviceAuthorization element of the service behavior in the following manner.
<serviceAuthorization principalPermissionMode="Windows7>
B) Decorate the RemoveOrder method by using the following attribute. <PrincipalPermission(SecurityAction. Demand, _Name:="CN=AdminUser;1bf47e90100acf4c0089cda65e0aadcf1cedd592")> _ Initialize the serviceAuthorization element of the service behavior in the following manner. <serviceAuthorization principalPermissionMode="UseAspNetRoles7>
C) Decorate the RemoveOrder method by using the following attribute.
<PrincipalPermission(SecurityAction. Demand,
_Name:="AdminUser;1bf47e90C0acf4c0089cda65e0aadcf1cedd592")> _ Initialize the
serviceAuthorization element of the service behavior in the following manner.
<serviceAuthorization principalPermissionMode="Windows7>
D) Decorate the RemoveOrder method by using the following attribute.
<PrincipalPermission(SecurityAction. Demand,
_Role:="AdminUser,1 bf47e90100acf4c0089cda65e0aadcf1 cedd592")> _ Initialize the
serviceAuthorization element of the service behavior in the following manner.
<serviceAuthorization principalPermissionMode="UseAspNetRoles7>

5. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You write the following lines of code.

You need to define the metadata for the DoSomething operation contract so that the parameter element is named Input and the method output element is named Output.
Which code segment should you use to replace the existing operation contract?

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

Solutions: