So i'll be honest i never really looked into which exams are for what all i know is 100-105 and 200-105 are a set and then there is 200-125. Now i read 100-105 if passed means your CCENT certified which is cool cause if i pass then fail 200-105 then im still somewhat certified. But whats does the 200-105 offer that the 100-105 don't? Also if i pass CCENT i have 3 years to retake and get 200-105 correct which then re certifies my CCNA? What materials did you use to pass CCENT. I have both CCNA exams and Lpic 2 to study for and take before Sept 26th its just short of 3 months but its stressful.