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单选题Wide Area Network (WAN) is a computer network that covers a broad areA. Which statement is correct for wide-area network (WAN)?（）A Limited in a single building, a group of buildings, or even a single roomB Crosses metropolitan, regional, or national bo

题目
单选题
Wide Area Network (WAN) is a computer network that covers a broad areA. Which statement is correct for wide-area network (WAN)?（）
A

Limited in a single building, a group of buildings, or even a single room

B

Crosses metropolitan, regional, or national boundaries

C

Encompasses an entire city or metropolitan area and connects multiple local-area networks (LANs)

D

Connects client devices wireless protocol

参考答案和解析
正确答案： C
解析： 暂无解析
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