After a library Wi-Fi 6 upgrade, an engineer validates airtime with a spectrum analyzer. Which observation best reflects expert recognition of modern Wi-Fi PHY and channel-width footprints?
Select an answer to reveal the explanation.
Short Explanation
Wi-Fi 6 still paints a recognizable OFDM/OFDMA 'block' across whatever width you set — 20 looks skinny, 80 looks fat — and it doesn't look like a microwave smear. DSSS-only thinking belongs in the museum wing of the library.
Full Explanation
Modern Wi-Fi PHYs (including OFDM and OFDMA used by Wi-Fi 6) produce characteristic spectral signatures whose occupied bandwidth tracks the BSS channel width. Engineers use those footprints to validate upgrades and separate Wi-Fi energy from non-Wi-Fi interferers. Microwave sweeps, claims that only DSSS remains, or denying that width is visible on spectrum tools are incorrect.