Alright, I have two questions and one of which is an item thats being discussed a million times before. Let me ask the same again. Need help!!!!

1) ITTO

Do I need to memorize them????????? Or just reading and understanding them is fine. I dont have experience as PM on all the ITTOs.

Whoever has atteneded the exam before, please suggest!!!

2) Professional and Social Responsibilty chapter:

Do I have to study this ethics chapter. This is not in PMBOK 4 but in Rita's seventh edition. How important is this?