In order to prevent too many users from accessing the WLAN network and causing poor Internet quality, a company configured a user CAC function based on the number of users. It is now required that…

Question

Options

• A[TAC-wlan rrm Prof-user cac] uac client Number enable
• B[TAC-wlan rrm Prof-user cac] uac client Number threshold access 25 roam 25
• C[TAC-wlan rrm Prof-user cac] uac Reach-access-threshold hide-ssid
• D[TAC-wlan rrm Prof-user cac] uac Client-snr threshold 25

• A
  10% (5)
• B
  2% (1)
• C
  6% (3)
• D
  82% (42)

Explanation

D is the unnecessary configuration because uac Client-snr threshold controls client admission based on signal-to-noise ratio (signal quality), not user count - it belongs to a completely different CAC mechanism and has no role in a number-based access limit scenario.

Why the other three are required:

• A (uac client Number enable) is the master switch that activates number-based user access control - without it, the feature doesn't function at all.
• B (uac client Number threshold access 25 roam 25) sets the actual cap of 25 users for both new associations and roaming clients, which is the core of the requirement.
• C (uac Reach-access-threshold hide-ssid) triggers SSID hiding once the threshold is hit, directly satisfying the second part of the requirement.

Memory tip: SNR = Signal quality, not Size of crowd. Whenever a question asks about limiting access by user count, any option referencing SNR or signal strength is the odd one out - those parameters control who can connect based on link quality, not how many can connect.

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