802.11 Standard Description 802.11a A. Uses the RSN feature, which defines two security methodologies 2. 802.11 B.Uses DSSS operating at a frequency of 2.4 GHz, which supports three non- overlapping channels 3. 802.11 802.11b C. Allows users to maintain a connection while roaming 5. 802.11g D. Uses OFDM modulation technique operating at a frequency of 5 GHz, which supports eight overlapping channels E. Can use either DSSS or OFDM operating at a frequency of 2.4 GHz