646-223 全真模擬試験 DEMO

問題1: You work as a systems administrator at . Your company is planning to choose a Cisco Unified
Communications solution because IP telephony solutions seems not be worth the cost. Which statement
would be the best annotation to this concern?
A.Cisco Unified Communications supports the idea of a converged network in which telephony and IP
components are integrated, while the traditional office environments in which voice and data are separate.
B.Cisco or its IP telephony specialized channel partners can customize these solutions to meet business
demands and realize cost savings resulting from existing equipment or applications, while Cisco Unified
Communications solutions are based on tested and verified designs that ensure rapid ROI.
C.With low operating and capital costs, a Cisco Unified Communications deployment will pay for itself in
18 months on average, and will provide an average annual savings per user of US$334. The drivers of
the ROI are determined by the unique network circumstances of the customer, such as the speed of
migration, the remaining life on the PBX, and the extent of the data upgrade.
D.An IP-enabled PBX inevitably reaches a point called the golden phone, at which an addition requires
more than just a phone, but requires a card to support the phone, and possibly a new shelf of a cabinet to
house the card. These upgrades end up being costly and offer the customer no flexibility to implement
nonproprietary solutions in the future.
正解: C