Which three statements regarding the Cisco Next Generation WAN solutions are correct? (Choose three.)
Form factors of Cisco Next Generation WAN products include routers.
Form factors of Cisco Next Generation WAN products include appliances and virtualized software.
All Cisco Next Generation WAN products have built-in hardware and software redundancy.
The Cisco Next Generation WAN solution supports on-demand services.
Cisco WebEx is an essential element of the Cisco Next Generation WAN solution.
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