What are three characteristics of the 802.11g standard? (Choose three.)

A.
speed of as much as 11 Mb/s

B.
speed of as much as 54 Mb/s

C.
backward-compatibility with 802.11a

D.
backward-compatibility with 802.11b

E.
OFDM as an additional modulation technique

F.
OFDM and CCK as additional modulation techniques