Cisco collaboration applications and services can be hosted in A number of ways, which three are valid hosting models?（）

单项选择题Which wireless technology would a customer choose to position them for bandwidth-intensive applications?（）

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

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?（）

A.MPLS
B.framerelay
C.leaseDline
D.metroethernet
E.widetransport

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? （）

A.demand among users for access to information anytime, anywhere
B.desire to use the same vender for desktop and server deployments
C.existing equipment has reached and of life
D.increasing operational costs of managing data centers
E.architectures that is inflexible and inefficient
F.selecting best-performing vendors for each individual component

单项选择题What is A WAN？（）

A.A network that connects client devices wirelessly using radio waves
B.A network that crosses metropolitan, regional, or national boundaries
C.A network that is restricted.to a single building ,a group of buildings, or even a single room
D.A network that encompasses an entire city or metropolitanared. and. connects multiple LANs