Wi-Fi is a family of (71)net work protocolsbased on the lEEE(72) family of stand..

2022年下半年上午试卷综合知识

第 75 题


章/节	与网络系统有关的新技术、新方法

Wi-Fi is a family of (71)net work protocols,based on the lEEE(72) family of standards,whic h are commonly used for (73) area networking of devices and Internet access,allowing nearby digital devices to exchange d ata by radio waves.A wireless (74) point(WAP) connects a group of wireless devices to an adjacent wired LAN.A Wi-Fi device is a (75) wireless device.A wireless router allows wired and w ireless Ethernet LAN devices toconnect to a(usually)single WAN device to achieve the publicInternet access.

A. near-field

B. short-range

C. middle-range

D. long-range

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