Christian,
Please stop using PMBOK Fifth Edition materials immediately. Only use materials from PMBOK Sixth Edition.
In a nutshell: If you use outdated materials you will fail your exam. Period.
(Also: You asked in a separate message why your post has not been saved. Don't worry, it has been saved. But our forums are all moderated. So every posts must be reviewed and approved by a moderator first. It's the only way to stop spammers... unfortunately... Oh and FYI: I have deleted your duplicate posts at this time .)