350-101: Implementing and Operating Cisco Wireless Core TechnologiesDemo

By Cisco · Question Mode

QuestionQ23

802.11 Technology Fundamentals

Which primary modulation technology does 802.11ax use for wireless communications?

  • A frequency hopping spread spectrum
  • B direct sequence spread spectrum
  • C orthogonal frequency-division multiple access
  • D Quadrature Amplitude Modulation OFDMA
Explanation

802.11ax (Wi‑Fi 6) uses orthogonal frequency-division multiple access (OFDMA) to divide a wireless channel into resource units and support simultaneous multiuser transmissions. It also supports 1024-QAM, but QAM is a modulation format rather than the OFDMA access technology. Cisco identifies OFDMA as the technology used by 802.11ax for high-speed, high-density requirements.

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