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350-401 · Question #423

What is a characteristic of a WLC that is in master controller mode?

The correct answer is A. All new APs that join the WLAN are assigned to the master controller.. WLC Master Controller Mode Explained When a Wireless LAN Controller (WLC) is configured in master controller mode, its specific function is to act as the default destination for newly joining APs - any AP that comes online and hasn't been previously assigned to a specific control

Submitted by takeshi77· Mar 6, 2026Architecture

Question

What is a characteristic of a WLC that is in master controller mode?

Options

  • AAll new APs that join the WLAN are assigned to the master controller.
  • BThe master controller is responsible for load balancing all connecting clients to other
  • CAll wireless LAN controllers are managed by the master controller.
  • DConfiguration on the master controller is executed on all wireless LAN controllers.

How the community answered

(45 responses)
  • A
    89% (40)
  • B
    2% (1)
  • C
    2% (1)
  • D
    7% (3)

Explanation

WLC Master Controller Mode Explained

When a Wireless LAN Controller (WLC) is configured in master controller mode, its specific function is to act as the default destination for newly joining APs - any AP that comes online and hasn't been previously assigned to a specific controller will automatically associate with the master controller. This makes option A correct, as it accurately describes this targeted, limited role in AP assignment.

Why the distractors are wrong:

  • Option B is incorrect because load balancing clients across controllers is not a function of master controller mode; that is handled by RF groups or mobility groups.
  • Option C is incorrect because the master controller does not manage other WLCs - it has no hierarchical authority over them; all controllers operate independently.
  • Option D is incorrect because master controller mode does not propagate or synchronize configurations to other controllers - configuration management is a separate function handled through tools like Cisco Prime or manual configuration.

Memory Tip: Think of the master controller as the "new employee orientation desk" - it only handles new arrivals (APs). Once an AP is assigned elsewhere, the master controller's job is done. It doesn't manage people (other WLCs) or enforce company-wide policies (configurations).

Topics

#WLC#AP Management#Wireless Networking#Controller Modes

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