单项选择题
A. network unification
B. network management
C. mobility platform
D. client devices
多项选择题 WhataretwoadvantagesthattheCisco3900SeriesIntegratedServicesRoutershaveovertherestoftheintegratedservicesrouters？（）
多项选择题 Anintegrated，convergednetworkenablescustomerstoaccomplishwhichthreeactions？（）
单项选择题 Whathost-basedIPSsolutionprovidesthreat-protectioncapabilitiesforserveranddesktopcomputingsystems？（）