Los examenes cambian "en detalles", acorde con la pagina de CISCO suman mas preguntas de IPV6 y temas de infraestructura (security, service y managment):
http://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/200-125-ccna.html
http://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/200-125-ccna.html