DRAG DROP
You are developing a WCF service.
The WCF service requires implementations of the new data contracts to validate against the
old schema.
You need to develop a new data contract without breaking current functionality.
What should you do? (To answer, drag the appropriate code segments to the correct
location or locations in the answer area. Each code segment may be used once, more than
once, or not at all. You may need to drag the split bar between panes or scroll to view
content.)
