多项选择题
A. customer issue narratives
B. training and events
C. ordering information
D. products and services information
多项选择题 Whatarethetwoadvantagesofanyintelligentnetworkthatusesasystems-levelapproach？（）
多项选择题 Businessesfacethreetypesofeconomicimpactsasaresultofhacksorintrusions：immediate，short-term，andlong-term.Whichtwobestdescribeshort-termeconomicimpactsthatcanbecausedbyasecuritybreach？（）
多项选择题 WhichtwostatementsbestexplainwhytheCiscoCatalyst6500Seriesofswitchesbestfitsinthecorearea？（）