The router in the figure (a D-Link DIR-655) uses the IEEE 802.11n wireless networking standard as its fastest wireless technology.
Question: What two frequency bands does 802.11n make use of?
(See the answer and video response below.)
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IEEE 802.11n uses the 2.4 GHz and 5 GHz frequency bands. See the video solution for more.
Answer at 0:44
IEEE 802.11n standard: https://standards.ieee.org/findstds/standard/802.11n-2009.html
Radio Electronics WLAN Channels: http://www.radio-electronics.com/info/wireless/wi-fi/80211-channels-number-frequencies-bandwidth.php