I really want to know what the best variant.
I have no english as first language and i'm not very good in english. my plan my study my resource books is always in english, practices also
what for me best variant? CAT or Linear exam?
Frankly, I think it's highly subjective as to which you would prefer.
I wasn't aware there was a choice though, I was under the impression all CISSP candidates would be sitting the CAT exam format.
There's not an option to choose. If you take the CISSP exam in English, it will be in CAT format.