单项选择题
A. It defines the minimum set of services required to successfully deploy and operate a set of Cisco technologies
B. It determines how best to price Cisco products
C. It provides partners with a useful way to leverage Cisco resources
D. It consists ofthese phase： plan， deploy， support， and troubleshoot
多项选择题 WhichthreeofthefollowingareelementsoftheCiscoUnifiedWirelessNetwork？（）
多项选择题 Whatarethreeimportantsecurityissuesinanysmall，medium，orenterprisebusinessorganization？（）
多项选择题 WhichtwoseriesofCiscoCatalystswitches，whenplacedinthedistributionlayer，effectivelypasshighamountsofnetworktrafficbetweenthecoreandaccesslayerswhileaggregatingaccess？（）