Which new enhancement was implemented in Wi-Fi 6?

Question

Options

• AWi-Fi Protected Access 3
• B4096 Quadrature Amplitude Modulation Mode
• CChannel bonding
• DUplink and Downlink Orthogonal Frequency Division Multiple Access

• B
  9% (2)
• C
  4% (1)
• D
  87% (20)

Explanation

Uplink and Downlink OFDMA (Orthogonal Frequency Division Multiple Access) was a key new enhancement introduced in Wi-Fi 6 (802.11ax), allowing the access point to simultaneously communicate with multiple devices by dividing channels into smaller sub-channels called Resource Units (RUs) - in both directions, which dramatically improves efficiency in dense environments.

Why the distractors are wrong:

• A (WPA3): WPA3 is a security protocol enhancement developed by the Wi-Fi Alliance, but it is an independent standard - not a feature introduced within the Wi-Fi 6 specification itself.
• B (4096-QAM): While Wi-Fi 6 did introduce 1024-QAM, it was actually Wi-Fi 6E and Wi-Fi 7 that pushed toward 4096-QAM, making this number inaccurate for Wi-Fi 6.
• C (Channel bonding): Channel bonding was introduced much earlier, back in Wi-Fi 5 (802.11ac) and even Wi-Fi 4 (802.11n), so it is not new to Wi-Fi 6.

Memory Tip: Think of Wi-Fi 6 as the "crowd manager" - OFDMA is the key innovation that lets it handle many devices at once, both sending and receiving, like a traffic coordinator working in both directions. Remember: Wi-Fi 6 = OFDMA = efficiency in crowds.

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