Jonathan LeeBusiness Development Manager| Symphony Communication Services LLCSingapore, Singapore, Singapore
Agreed with most of the responses here so far: PMP questions are highly contextual whereas the questions in PM challenge are more like trivia on the knowledge in the PMBOK guide.
Difference: PMP questions are FAR less straightforward to answer... which is why it's a good indicator of PM experience and knowledge. Saving Changes...
"Every child is born blessed with a vivid imagination. But just as muscles grow flabby with disuse, so the bright imagination of a child pales in later years if he ceases to exercise it."