A fun Online Cocoa/Objective-C quiz for beginners has been put up by Olver Drobnik.
The quiz is called "Are you a Cocoa Crack?" and provides a surprising challenging test for Cocoa programmers. I think it’s a fun little test because it’s very short, and easy, but tests beginners on a few concepts that are easily overlooked.
Make sure you understand your NSStrings, NSIntegers, IBoutlet, and the ternary conditional operator or you could be in for a suprise. If you find the test challenging… well you should probably hit up these Objective-C books.
Check it out here: Are you a Cocoa Crack?
[Source: Dr. Touch]