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?（）
A.cisco SMARTnet service B.cisco captial financing C.cisco smart business roadmap D.cisco network optimization service
多项选择题 What are three common reasons why customers are saying that they need to evolve their data center? （）
单项选择题 What is A WAN？（）
多项选择题 Which three challenges have been created by the move toward Virtualization in the data center? （）
