多项选择题
A. rapid response time
B. head count
C. connectivity
D. security threats
E. reduced complexity
F. disaster recovery
多项选择题 WhichtwoseriesofCiscoCatalystswitches，whenplacedinthedistributionlayer，effectivelypasshighamountsofnetworktrafficbetweenthecoreandaccesslayerswhileaggregatingaccess？（）
多项选择题 WhichtwostatementbestdescribestheCiscoUnifiedWirelessNetwork？（）
单项选择题 WhatvoiceendpointisrecommendedforusewiththeCiscoUnifiedCommunications500Seriesforsmallbusinesses？（）