Just to be clear... You are still allowed to make a brain dump during your PMI Exams as follows:
Before you start the exam: No. Not allowed to write anything down.
Once you click "start" and the first question is displayed on the screen: Yes. Now you are allowed to write down anything you like, including your brain dump.
I just took my test last week and you are correct, you are not allowed to start writing down anything until the test starts and the first questions appears. Good luck!
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