题目内容
_______ are countrywide and worldwide networks.
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A(n) _______ area network is a type of wireless network that works within your immediate surroundings to connect cell phones to headsets, controllers to game systems, and so on.
A(n) _______ network system uses central servers to coordinate and supply services to other nodes on the network.
A(n) _______ is a private network within an organization that is designed to resemble the Internet.
A(n) _______ is a private network that connects more than one organization.
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