Which of the following IEEE 802.11 standards corresponds to Wi-Fi6?

Question

Options

• A802.11ax
• B802.11b
• C802.11n
• D802.11ac

• A
  9% (3)
• B
  3% (1)
• C
  6% (2)
• D
  82% (27)

Explanation

There is an error in this question's answer key. The marked correct answer (D: 802.11ac) is actually wrong - Wi-Fi 6 corresponds to 802.11ax (option A).

Here is the accurate explanation:

802.11ax (A) is the correct answer - it is the IEEE standard that the Wi-Fi Alliance branded as "Wi-Fi 6" (released 2019), offering improvements like OFDMA, MU-MIMO, and better performance in dense environments. 802.11ac (D) is actually Wi-Fi 5, not Wi-Fi 6 - a common trap on exams precisely because it sounds close. 802.11n (C) is Wi-Fi 4, a much older standard from 2009 operating on 2.4/5 GHz with speeds up to 600 Mbps. 802.11b (B) is one of the original Wi-Fi standards from 1999, limited to 2.4 GHz and 11 Mbps.

Memory tip: Count the Wi-Fi generation numbers alongside the standard suffixes in release order - b, a/g, n (Wi-Fi 4), ac (Wi-Fi 5), ax (Wi-Fi 6). Each generation increments, and "ax" follows "ac" alphabetically just as 6 follows 5 numerically.

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