Please confirm, are you able to go back and check the answers? The CISSP has stopped this now and you have to be sure as you don’t have the ability to go back? I took and passed the CISSP a few months ago.
Does that mean, ISC2 doesn't allow to have questions reviewed before submission in the CISSP exam?
I passed CISSP in 2014, then you could mark questions to review later and then submit, though I never revisited questions in the exam because reading each questions to understand it well and pick the right answer took a lot energy
The English version of the CISSP moved to Computerised Adaptive Testing (CAT) in April 2018:
On a CAT exam, once you submit an answer you can't go back and review it as it is scored immediately and has a bearing on future questions you will be asked. i.e. The test algorithm "adapts" the questions based on how well you're doing.
All other exams, including the CISSP in languages other than English, still use the "linear" methodology.