Im in the York region, mine was SCR too... back in the day in 2021 processing time was about 1 yr on an avg (although IRCC website would say 27 months then), but I think SCR was fairly quick..
Not sure but could be SCR as well. Check when the test invite comes, the clues are in the email address... e.g. IRCC.DNCitSCRScheduling-ConvocationSCRCitRN.IRCC@cic.gc.ca