Here is my comments on your points
- Have you been asked to present all your previous and current (expired and not) passports. In my situation I have two current of which only one is biometric and hence been submitted with my citizenship application.
- Current and old passport should be with you
- You will be only asked to show some pages randomly as per the officer selection from both passport
- Officer will cross check with the submitted passport pages
- How long did the interview last?
- Approx. 20 Min
- Did they question your travel history, or only physical presence calculator validation?
- Officer will double check the physical presence and ask for any clarification
- As long as you meet the physical presence requirements , there should be no issue even if you are not in Canada
in my case officer asked if I would be attending the ceremony in Canada and I confirmed that , ceremony invite is sent two weeks in advance to let you prepare
I hope this answers your questions
Good Luck