英文原版CCNA Voice Study Guide 1st Edition

Exam640-460 TheultimateguidetothenewCCNAvoicenetworkadministratorcertificationexamThenewCCNAVoiceexamtestscandidatesontheirabilitytoimplementaCiscoVoIPsolution.NetworkadministratorsofvoicesystemswillappreciatethattheCCNAVoiceStudyGuidefocusescompletelyonth