It was for physical presence. I applied with 1096 days. I had three trips before becoming PR that entered the wrong dates for, it didn't impact my physical presence days but that was what triggered the interview. All my travel dates since being PR was correct. I provided the interviewer with a new presence calculator print out with the correct pre-PR travel dates, and translation of non English/French stamps. The interviewer also took photocopies of my passport and just said that she will look through the stamps. I also had a lot of trips, 11 since being PR, so they also wanted to confirm all the dates were correct. I requested the CBSA travel reports, which I assumed the IRCC staff also had, and all the dates lined up to what I put in my application. So the only thing that was inaccurate was my pre-PR travel dates.
She asked some other routine questions like what I do for work, when/context of my initial entry into Canada. But the physical presence was the only thing, my background and language skills were completed well before the interview.
