Review CCNA first?
It’s been about 3 years since I studied for my CCNA and almost time to renew it. I want to keep it so I am going to study for the security specialization. I am afraid at this point I remember very little. Should I take time to review everything from my CCNA studies first or will things come back to me as I study the security material. I don’t want to waste time reviewing if I don’t have to.