70-503 is very vital certification from the Microsoft. Microsoft 70-503 exam is the best option for the people who have the basic knowledge of the Microsoft products and wish to make their career in the Microsoft products. Certinside provides you the guidance of the senior and certification experts and provide you 70-503 exam questions as well. Certinside also provides you everything that you need to clear your certification. 1. 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.
_
Public Interface IMyService
_
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. _
Public Interface IMyServiceV1
Inherits IMyService
_
Sub DoSomethingElse()
End Interface
B. _
Public Interface IMyServiceV1
Inherits IMyService
_
Sub DoSomethingElse()
End Interface
C. _
Public Interface IMyServiceV1
Inherits IMyService
_
Sub DoSomethingElse()
End Interface
D. _
Public Interface IMyServiceV1
Inherits IMyService
_
Sub DoSomethingElse()
End Interface
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