单项选择题
A. assists in locating appropriate resources
B. provides training on products， tools， and solutions
C. provides a direct support path for any partner issue
D. provides validated commercial solutions
E. provides a step-by-step outline of implementation tasks required
多项选择题 TheCiscoSA500SeriesSecurityAppliancesarebuiltspecificallyforbusinesseswithlessthan100employees.Whatarethreeimportantbenefitsofthisdevice？（）
单项选择题 WhichcombinationofportsisavailableontheCiscoSPA8800voicegateway？（）
多项选择题 QoSreferstotheabilityofanetworktoprovideimprovedservice，overvariousunderlyingtechnologies，toselectnetworktraffic.WhichtwotraitsareinherenttoQoS？（）