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Posted Time & Date | 02:03 PM - 10 May 2017

Ques :  How many layer technologies does 802.11 wireless networking use?

Answer :  IEEE 802.11 has been using four physical layer of technologies for implementing wireless local area network:
  • Frequency Hopping Spread Spectrum (FHSS)
  • Infrared
  • Direct Sequence Spread Spectrum (DSSS)
  • Orthogonal Frequency Division Multiplexing (OFDM)
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