Which of the following is incorrect about Wi-Fi wireless networks? (Wentz QOTD)
A. Wi-Fi 6 follows 802.11ax, which supports both 2.4 and 5 GHz, and 2.4 Gbps
B. 802.11g uses the 2.4 GHz band with 20 MHz channels where channels 1, 6, and 11 are nonoverlapping
C. All access points in the same extended service set should use the same nonoverlapping channel to support roaming
D. An access point may have one or more Service Set IDs to support various levels of security
Kindly be reminded that the suggested answer is for your reference only. It doesn’t matter whether you have the right or wrong answer. What really matters is your reasoning process and justifications.
My suggested answer is C. All access points in the same extended service set should use the same nonoverlapping channel to support roaming.
Wentz’s book, The Effective CISSP: Security and Risk Management, helps CISSP and CISM aspirants build a solid conceptual security model. It is a tutorial for information security and a supplement to the official study guides for the CISSP and CISM exams and an informative reference for security professionals.
Reference
下列關於 Wi-Fi 無線網絡的說法不正確的是？ (Wentz QOTD)
A. Wi-Fi 6 遵循 802.11ax，支持 2.4 和 5 GHz頻帶，以及 2.4 Gbps的傳輸率
B. 802.11g 使用 2.4 GHz 頻帶和 20 MHz 通道，其中通道 1、6 和 11 不重疊
C. 同一擴展服務集的所有接入點(AP)應使用相同的非重疊通道以支持漫遊
D. 一個接入點(AP)可能有一個或多個服務集 ID (SSID) 以支持不同級別的安全性