多项选择题
A.number of product features
B.return on investment
C.competitiveness
D.regulation
E.day one costs
F.availability of budget
单项选择题 What ensures that voice packets are given priority throughout the network so that conversations arrive intact?（）
多项选择题 Content networking solutions improve access to which two types of content? （）
多项选择题 There are many reasons why customers lack sufficient security measures on the network. Which two reasons for insufficient security are typical of the customers today?（）