单项选择题

Which Cisco collaboration product line will reduce TCO. Improve the user experience and productivity, and increase business relevance?（）

A.customer care
B.messaging
C.IP communications
D.telepresence
E.conferencing

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多项选择题

A.operational efficiency
B.data center deployments
C.cost containment
D.technical staffing
E.customer responsiveness
F.employee training

多项选择题

A.SaaS
B.virtual
C.device-specific
D.hybrid
E.integrated
F.on-premises

单项选择题

A. 802.11a
B. 802.11g
C. 802.11n
D. 802.11x