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全部科目 > 软件认证工程师考试 > 思科认证考试 > CSE(646-205)

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

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