多项选择题
A.return on investment
B.competitiveness
C.number of product features
D.day one costs
E.regulation
F.availability of budget
单项选择题 The cisco ironport portfolio performs which service?（）
多项选择题 Which three benefits are provided by the implementation of cisco c-series servers into A virtualized data center environment?（）
单项选择题 Which cisco product family is the recommended platform for 10 gigabit ethernet in the data center?（）