多项选择题
A.Configuring changes to hardware and software
B.Monitoring online purchasing
C.Monitoring user access to storage files
D.Monitoring and troubleshooting network devices
多项选择题 Which three challenges have been created by the move toward Virtualization in the data center? （）
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?（）