Question:You write a class named Employee that includes the following code segment.
Private m_EmployeeId As String
Private m_EmployeeName As String
Private m_JobTitleName As String
Public Function GetName() As String
Return m_EmployeeName
 End Function
Public Function GetTitle() As String
Return m_JobTitleName
End Function
End Class
You need to expose this class to COM in a type library. The COM interface must also facilitate forward-compatibility across new versions of the Employee class.
You need to choose a method for generating the COM interface. What should you do?
 

A Add the following attribute to the class definition. 
 <ClassInterface(ClassInterfaceType.AutoDual)> _
Public Class Employee 
B Add the following attribute to the class definition. 
 <ComVisible(True)> _
Public Class Employee 
C Add the following attribute to the class definition. 
<ClassInterface(ClassInterfaceType.None)> _
Public Class Employee 
D Define an interface for the class and add the following attribute to the class definition.
<ClassInterface(ClassInterfaceType.None)> _
Public Class Employee 
Implements IEmployee 

+ Answer
D 

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Mohammad Towhidul Islam

Editor, VCampus

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