Yea, early on in my career (right out of college) I interviewed at google and got stumped on a couple zingers, one I remember was not being able to identify all

Yea, early on in my career (right out of college) I interviewed at google and got stumped on a couple zingers, one I remember was not being able to identify all the use cases of the virtual keyword in C++. By no means did I put myself out as a C++ expert at the time. But getting turned down from Google probably turned out to be the best thing that happened to me.