单项选择题
What is the Cisco collaboration per-person licensing option that simplifies purchasing and provides customers with maximum flexibility?（）
A.Cisco Unified Collaboration Licensing B.Cisco Unified Communications Software Subscription C.Cisco Unified Workspace Licensing D.Cisco User Connect Licensing
多项选择题 Network management saves time and money by automating which two tasks? （）
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?（）
