Interview questions

Explain DDX and DDV in MFC
CmdTraget Class in MFC
SendMessage and Post Message in MFC
CObject Class in MFC
Can we use Free with new or delete with Malloc ?
how to define const data type in C++ class
CArchive Class in MFC
which is the Base of all MFC classes?
blocking function in socket
How to define or declare static in class
safe array
smart pointer

Unit testing native (C/C++) code on Windows

"WinUnit offers a unique approach to unit testing native (C/C++) code on Windows."

http://winunit.codeplex.com/

Design Patterns references

Came across this references while searching for design patterns with C++

http://www.codeguru.com/forum/showthread.php?t=327982

http://www.vincehuston.org/dp/