多项选择题
Which three challenges have been created by the move toward Virtualization in the data center? （）
A.overstaffing B.management integration C.coherent policies and security D.scalability E.consolidation F.asset tracking
单项选择题 Which benefit does digital subscriber line (DSL) systems for broadband access provide to the user?（）
多项选择题 Which three are benefits of A virtualized data center solution over A typical implementation?（）
单项选择题 What is a benefit of Internet protocol (IP) telephony?（）
