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802.11a OFDM
a) Orthogonal frequency-division multiplexing utilizing a 5-GHz band
b) Same as FDM except all sub bands are used by only one source at a given time
c) Security increased by assigning sub bands randomly
d) Data rates of 18 Mbps and 54 Mbps
e) Often used in power-line networking
#question..
Can you explain the different layers in OSI model?
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