1. 802.11b (commonly known as \"Wi-Fi\") describes the IEEE wireless networking standard for a WLAN that operates in the 2.4 GHz radio band (ISM--Industrial Scientific Medical frequency band). 802.11b-based WLANs are far more common than 802.11a or 802.11g networks and can achieve a maximum data rate of 11 Mbps per second at distances up to approximately 300 feet. 802.11b was the first WLAN technology offered to consumers and enabled the creation of instant wireless networks in offices and homes. Devices certified by the Wi-Fi Alliance bear the official Wi-Fi logo.