Summary:You keep appointments all day long, but there's one you must keep to earn your CCNA or CCNP. Learn about this vital detail from Chris Bryant, CCIE #12933. Keywords:cisco, ccna, certification, study, time, router, switch, ccnp, exam, pass, free, tutorial, bryant Article Body:Imagine this.  You have an appointment with a client to work on a server or router install.   A few...