You must optimize the 2.4GHz radio usage during the frequency planning of a high-density environment. Which step do you take to ensure that all of the clients can access the APs?

Question

Options

• AReduce the number of users per cell by adding additional APs
• BPhysically limit the propagation of wireless signals by using antennas and by the placement of the
• CLimit the propagation of wireless signals by using a four-channel plan on neighboring APs where
• DLimit overlapping signals by using three non-overlapping channels

• A
  5% (2)
• B
  7% (3)
• C
  17% (7)
• D
  71% (30)

Explanation

The 2.4 GHz band has only three non-overlapping channels in most regulatory domains: channels 1, 6, and 11. Using a three-channel plan (D) ensures that adjacent APs operate on channels that do not overlap in frequency, eliminating co-channel and adjacent-channel interference in the dense environment. Option C references a four-channel plan, which is appropriate for 5 GHz but not for 2.4 GHz, where only three non-overlapping channels exist. Adding more APs (A) without frequency planning would increase interference. Using directional antennas and placement (B) is a physical mitigation strategy that complements - but does not replace - proper channel planning, and the choice as written is incomplete.

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