H12-821_V1.0 · Question #380
Which of the following IEEE 802.11 standards corresponds to Wi-Fi 6?
The correct answer is C. 802.11ax. 802.11ax is the technical standard that the Wi-Fi Alliance branded as Wi-Fi 6, introducing major improvements in efficiency, throughput, and multi-device performance through technologies like OFDMA and MU-MIMO enhancements. Why the distractors are wrong: A (802.11ac) = Wi-Fi 5…
Question
Options
- A802.11ac
- B802.11n
- C802.11ax
- D802.11ad
How the community answered
(39 responses)- A3% (1)
- B8% (3)
- C82% (32)
- D8% (3)
Explanation
802.11ax is the technical standard that the Wi-Fi Alliance branded as Wi-Fi 6, introducing major improvements in efficiency, throughput, and multi-device performance through technologies like OFDMA and MU-MIMO enhancements.
Why the distractors are wrong:
- A (802.11ac) = Wi-Fi 5, the previous generation operating on 5 GHz
- B (802.11n) = Wi-Fi 4, an older dual-band standard from the late 2000s
- D (802.11ad) = WiGig, a 60 GHz short-range standard - not part of the main Wi-Fi generational naming sequence
Memory tip: The Wi-Fi generation number maps to the last digit(s) of the suffix - Wi-Fi 4 = 802.11n, Wi-Fi 5 = 802.11ac, Wi-Fi 6 = 802.11ax. Notice the letters progress (n → ac → ax), and the "x" in ax can remind you of Wi-Fi six.
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