Thanks so much for your time . So although in the Exam Objetives for JN0-647 say that is necessary study RIP and IS-IS as IGPs protocols , as in the AJER course don´t apper these topics , I don´t have to study these protocols ? .
yes i already have JNCIA and JNCIS-ENT . I want to prepare JNCIP-ENT without pay the AJER and AJEX course because is too expensive for me . i have a older versión ( 11b ) of these documents , but now the update version is 15a ... also I have O´Really´s book "Junos Enterprise Routing, 2nd Edition" .