200-301: Cisco Certified Network AssociateDemo

In the 2.4 GHz Wi‑Fi band, adjacent channel center frequencies are spaced 5 MHz apart, while a typical Wi‑Fi channel is about 20 MHz wide. That means most nearby channels overlap. The commonly accepted nonoverlapping 2.4 GHz channels are 1, 6, and 11, which are spaced far enough apart to avoid overlap in standard 20 MHz deployments.