A network engineer is designing a high-density wireless network. To optimize client performance and avoid interference. Which configuration must the engineer use?

Question

Options

• ADeploy APs near each other for 2.4-GHz,coverage, and disable 5-GHz radios for some APs.
• BDeploy APs near each other for 2.4-GHz,coverage, and disable 5-GHz radios for all APs.
• CDeploy APs near each other for 5-GHz,coverage, and disable 2.4-GHz radios for some APs.
• DDeploy APs near each other for 5-GHz,coverage, and enable 2.4-GHz radios for all APs.

• A
  14% (8)
• B
  4% (2)
• C
  75% (43)
• D
  7% (4)

Explanation

In high-density wireless environments, 5 GHz is the preferred band because it offers significantly more non-overlapping channels (up to 25 in 5 GHz vs. only 3 in 2.4 GHz) and experiences far less co-channel interference. Placing APs close together for 5-GHz coverage allows more spatial reuse. Disabling 2.4-GHz radios on some (not all) APs is the best practice - it reduces 2.4-GHz congestion and co-channel interference while preserving backward compatibility for legacy 2.4-GHz-only clients on the remaining APs. Disabling 2.4 GHz on all APs would break legacy client support. Enabling 2.4 GHz on all APs in a high-density deployment is exactly the interference problem being avoided.

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