TOPIC: Best use of the PMP Exam simulator

Hi all,

I just finished the PrepCast 35 contact hours training and now I'm approaching the Exam simulator to valuate my weak points. I like the opportunity to choose the knowledge areas (so I can address the main topics with respect to the PMBOK 6) or to choose the main domain (so to stay on the latest ECO edition). However I'm not sure what's the advantage to UN-check (select NO):

Include ITTO Exam
Include Exam questions:

To me these two options should be YES to proper represent the exam questions.
What's the benefit in not using (select NO) these two options?

Thank you!
R.