I think is may not be testing the right things. For example, what if the test was in Visual Basic, and instead of asking questions about non virtual destructor

I think is may not be testing the right things. For example, what if the test was in Visual Basic, and instead of asking questions about non virtual destructors in virtual classes, it was asking questions about uses of various database Apis. " Oops, you used the wrong enum value in that function call." Would that test yield top programmers, or just people who knew a database API very well? Also, it doesn't demonstrate the ability to solve problems by writing code. At best it tests C++ code review skills.