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)?()ALimited in a single building, a group of buildings, or even a single roomBCrosses metropolitan, regional, or national boundariesCEncompasses an entire city or metropolitan area and connects multiple local-area networks (LANs)DConnects client devices wireless protocol

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


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名词解释题广域网WAN(Wide Area Net)