Certified Ethical Hacker (CEH) Practice Question

In the 2.4 GHz WLAN spectrum each 20 MHz-wide channel overlaps most neighboring channels, causing adjacent-channel interference that degrades throughput and can expose management traffic to easier interception. Channels 1, 6, and 11 are the only three 20 MHz channels whose center frequencies are separated far enough (25 MHz) to avoid overlap in most regulatory domains. Restricting APs to these channels therefore reduces mutual interference, improves signal clarity, and lowers the chance that rogues or attackers can exploit degraded signal quality. The other options are incorrect: WPA3 is independent of channel selection, FCC power limits do not uniquely favor these channels, and channels 1, 6, and 11 are not reserved for government use.