Free H12-311 Exam Braindumps
HCIA-WLAN V2.0 Questions 96–100 (page: 21)

Updated On: 10-Feb-2026

MIMO (Multiple input and multiple output), that is, multiple input and multiple output, wireless access points and clients using 802.11n technology can simultaneously transmit data using up to three spatial streams, and the theoretical rate can reach 600 Mbps.

  1. True
  2. False

Answer(s): B



What are the rates that 802.11a can support?

  1. 6,12,24,54 Mbps
  2. 6,9,12,18,24,36,48,54 Mbps
  3. 6,12,18,24,36,48,54 Mbps
  4. 6,9,12,18,24,30,36,48,54 Mbps

Answer(s): B



What are the rates that 802.11g can support?

  1. 1,2,5.5,11&6,9,12,18,24,30,36,48,54 Mbps
  2. 6,9,12,18,24,36,48,54 Mbps
  3. 1,2,5.5,11&6,9,12,18,24,36,48,54 Mbps
  4. 6,9,12,18,24,30,36,48,54 Mbps

Answer(s): C



Which of the following is included in the 802.11n MAC layer improvement technology (Select 2 Answers)?

  1. Frame aggregation technology
  2. MIMO technology
  3. Block confirmation technology
  4. Beamforming technology

Answer(s): A,C



How many subcarriers can 802.11n use to transmit data in 20M mode?

  1. 48
  2. 52
  3. 54
  4. 56

Answer(s): B



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