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Exam : Microsoft 70-503
Title : TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation


1. You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.
The service contains the following code segment.
[DataContract]
public class Person
{
}
[DataContract]
public class Customer : Person
{
}
You need to create a service contract that meets the following requirements:
The service contract must have an operation contract named GetPerson that returns an object of type Person.
The GetPerson operation must be able to return an object of type Customer.
Which code segment should you use?
A. [ServiceContract]
[ServiceKnownType("GetPerson")]
public interface IMyService
{
[OperationContract]
Person GetPerson();
}
B. [ServiceContract]
public interface IMyService
{
[OperationContract]
[ServiceKnownType("Customer")]
Person GetPerson();
}
C. [ServiceContract]
[ServiceKnownType(typeof(Customer))]
public interface IMyService
{
[OperationContract]
Person GetPerson();
}
D. [ServiceContract]
[ServiceKnownType("GetPerson",typeof(Customer))]
public interface IMyService
{
[OperationContract]
Person GetPerson();
}
Answer: C

2. You have created a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
The existing service interface is named IMyService, and contains the following code segment.
<ServiceContract(Name:="SvcOrder", _
Namespace:="http: //contoso.com/services")> _
Public Interface IMyService
<OperationContract()> _
Sub DoSomething()
End Interface
You create a new service named IMyServiceV1 that contains an operation named DoSomethingElse.
You need to ensure that existing client applications are still able to access the IMyService.DoSomething method without modifying client code.
Which code segment should you use?
A. <ServiceContract(Namespace:="http: //contoso.com/services/V1")> _
Public Interface IMyServiceV1
Inherits IMyService
<OperationContract()> _
Sub DoSomethingElse()
End Interface
B. <ServiceContract(Name:="SvcOrder")> _
Public Interface IMyServiceV1
Inherits IMyService
<OperationContract()> _
Sub DoSomethingElse()
End Interface
C. <ServiceContract(Name:="SvcOrderV1", _
Namespace:="http: //contoso.com/services")> _
Public Interface IMyServiceV1
Inherits IMyService
<OperationContract()> _
Sub DoSomethingElse()
End Interface
D. <ServiceContract(Name:="SvcOrder", _
Namespace:="http: //contoso.com/services")> _
Public Interface IMyServiceV1
Inherits IMyService
<OperationContract()> _
Sub DoSomethingElse()
End Interface
Answer: D

3. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You have successfully defined a service contract named IManageOrders.
You write the following code segment.
public class OrderImpl : IManageOrders {
public void MarkOrderClosed(int orderId){
try {
...
}
catch (SqlException exc){
throw new FaultException<DataFault>(new DataFault());
}
}
}
[DataContract]
public class DataFault {
}
You need to create a fault contract for the MarkOrderClosed method on the IManageOrders service contract.
Which code segment should you add?
A. [FaultContract(typeof(DataFault))]
B. [FaultContract(typeof(Exception))]
C. [FaultContract(typeof(SqlException))]
D. [FaultContract(typeof(FaultException))]
Answer: A

4. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You have successfully defined a service contract named IManageOrders.
You write the following code segment.
Public Class OrderImpl
Implements IManageOrders
Public Sub MarkOrderClosed(ByVal orderId As Integer) _
Implements IManageOrders.MarkOrderClosed
Try
...
Catch ex As SqlException
Throw New FaultException(Of DataFault)( _
New DataFault())
End Try
End Sub
End Class
<DataContract()> _
Public Class DataFault
End Class
You need to create a fault contract for the MarkOrderClosed method on the IManageOrders service contract.
Which code segment should you add?
A. <FaultContract(GetType(DataFault))>
B. <FaultContract(GetType(Exception))>
C. <FaultContract(GetType(SqlException))>
D. <FaultContract(GetType(FaultException))>
Answer: A

5. You have created a Windows Communication Foundation service by using Microsoft .NET Framework 5.
The existing service interface is named IMyService, and contains the following code segment.
[ServiceContract(Name="SvcOrder",
?Namespace="http://contoso.com/services")]
public interface IMyService
{
[OperationContract]
void DoSomething();
}
You create a new service named IMyServiceV1 that contains an operation named DoSomethingElse.
You need to ensure that existing client applications are still able to access the IMyService.DoSomething method without modifying client code.
Which code segment should you use?
A. [ServiceContract(Namespace="http:?//contoso.com/services/V1")]
public interface IMyServiceV1 : IMyService
{
[OperationContract]
void DoSomethingElse();
}
B. [ServiceContract(Name="SvcOrder")]
public interface IMyServiceV1 : IMyService
{
[OperationContract]
void DoSomethingElse();
}
C. [ServiceContract(Name="SvcOrderV1",
Namespace="http: //contoso.com/services")]
public interface IMyServiceV1 : IMyService
{
[OperationContract]
void DoSomethingElse();
}
D. [ServiceContract(Name="SvcOrder",
Namespace="http: //contoso.com/services")]
public interface IMyServiceV1 : IMyService
{
[OperationContract]
void DoSomethingElse();
}
Answer: D

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