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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Clear channel assessment attack ： ウィキペディア英語版 Clear channel assessment attack A clear channel assessment attack or Queensland attack is physical layer DoS attack against Wi-Fi networks. The attack focuses the need of a wireless network to receive the "clear channel assessment"; which is a function within CSMA/CA to determine whether the wireless medium is ready and able to receive data, so that the transmitter may start sending it. The attack makes it appear that the airwaves are busy, which basically puts the entire system on hold. The attack works only on 802.11b, and is not effective on the OFDM-based protocols 802.11g and 802.11a. However, some hybrid 802.11b/g access points will hinder the 802.11g network when the 802.11b network is attacked.〔(【引用サイトリンク】title=Denial of Service Attacks Against 802.11 DCF )〕 ==Discovery== The attack was originally discovered by researchers at Queensland University of Technology's Information Security Research Center,〔(【引用サイトリンク】title=AusCERT Advisory: Denial of Service Vulnerability in IEEE 802.11 Wireless Devices )〕 thus it is where the name ''Queensland attack'' comes from. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Clear channel assessment attack」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.