单选题Which of the following wireless technologies is primarily setup for video/audio and the frequency is 5 GHz?（）A CellularB 802.11aC 802.11bD Satellite

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单选题

Which of the following wireless technologies is primarily setup for video/audio and the frequency is 5 GHz?（）

Cellular

802.11a

802.11b

Satellite

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TestKing has five regional offices that are located in different cities. The IT staff is evaluating WAN technologies to interconnect the regional offices to corporate headquarters. Each of the regional offices should be connected to the corporate headquarters in a hub and spoke arrangement using a packet-switched technology.Which of the following WAN technologies will fulfill these requirements?（）A. Frame RelayB. ISDNC. T1 leased linesD. Wireless

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Which of the following should be used to restrict access to a wireless network?（）A、Port forwardingB、Enable SSID broadcastC、Wireless encryptionD、Enable DMZ

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Which of the following wireless technologies is primarily setup for video/audio and the frequency is 5 GHz?（）A、CellularB、802.11aC、802.11bD、Satellite

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220-701

单选题Which of the following wireless technologies is primarily setup for video/audio and the frequency is 5 GHz?（）A CellularB 802.11aC 802.11bD Satellite

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