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Multiple Choice

IEEE 802.11 WLAN specifications include operation in which bands?

IEEE 802.11 WLANs operate primarily in the 2.4 GHz and 5 GHz unlicensed bands. The 2.4 GHz band supports longer range and better wall penetration, which helped early standards like 802.11b/g/n. The 5 GHz band provides more channels and typically less interference, enabling higher data rates for many 802.11ac/ax deployments. Other bands, such as 60 GHz, are used only for specific high‑speed, short‑range variants (not the general WLAN baseline), and bands like 900 MHz or 3.6 GHz are not part of the standard WLAN spectrum. So the best answer is the 2.4 GHz and 5 GHz combination.

IEEE 802.11 WLANs operate primarily in the 2.4 GHz and 5 GHz unlicensed bands. The 2.4 GHz band supports longer range and better wall penetration, which helped early standards like 802.11b/g/n. The 5 GHz band provides more channels and typically less interference, enabling higher data rates for many 802.11ac/ax deployments. Other bands, such as 60 GHz, are used only for specific high‑speed, short‑range variants (not the general WLAN baseline), and bands like 900 MHz or 3.6 GHz are not part of the standard WLAN spectrum. So the best answer is the 2.4 GHz and 5 GHz combination.