單項(xiàng)選擇題Wide Area Network (WAN) is a computer network that covers a broad areA. Which statement is correct for wide-area network (WAN)?()

A.Connects client devices wireless protocol
B.Crosses metropolitan, regional, or national boundaries
C.Limited in a single building, a group of buildings, or even a single room
D.Encompasses an entire city or metropolitan area and connects multiple local-area networks (LANs)


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2.單項(xiàng)選擇題Which cisco product portfolio allows users to access their email, voice, and fax messages from A single inbox anytime, anywhere?()

A.Cisco WebEx Connect
B.Cisco Unity
C.CiscoUnified Personal Communicator
D.CiscoIntegrated Messaging

3.單項(xiàng)選擇題A standard three-year term, next-business-day hardware replacement, and telephone support are features of which cisco support program?()

A.SMARTnet
B.SMB Foundation
C.Small Business Pro Service
D.SMART Care

4.多項(xiàng)選擇題Which three are benefits of A virtualized data center solution over A typical implementation?()

A.more efficient power consumption
B.fewer applications per server
C.less rack space
D.more efficient routing
E.more control over each server
F.simplified cabling