多项选择题
A.simplified cabling
B.more efficient routing
C.fewer applications per server
D.more efficient power consumption
E.more control over each server
F.less rack space
单项选择题 What is a benefit of Internet protocol (IP) telephony?（）
单项选择题 Controlling costs that are associated with network issues, keeping unexpected problems from affecting productivity, and achieving business goals are characteristics of which cisco offering?（）
单项选择题 A customer asks for help choosing their WAN technology, the customer is looking for A solution that can be used across very long distances, provides QoS and VPN support, and is sensitive to their budgeting needs ,which WAN technology would you recommend?（）