Which is a function performed by the dedicated third radio in MR access points?

Question

Options

• ARF optimization (Auto RF)
• BWLAN controller
• CSite survey planning
• DDHCP addresssing

• A
  93% (27)
• B
  3% (1)
• C
  3% (1)

Explanation

Option A is correct because the dedicated third radio in Cisco Meraki MR access points is purpose-built for continuous RF scanning and optimization - it monitors the wireless environment (channel utilization, interference, rogue APs) and automatically adjusts channel and power settings without interrupting client-serving radios. Option B is wrong because WLAN controller functions are handled by the Meraki cloud dashboard or a dedicated hardware controller, not a radio. Option C is incorrect because site survey planning is a pre-deployment process done with specialized tools, not an ongoing radio function. Option D is wrong because DHCP addressing is a Layer 3 network service provided by a server or router, completely unrelated to radio hardware.

Memory tip: Think of the third radio as an always-on "traffic cop" watching the airwaves - its sole job is Auto RF, keeping the other two radios (2.4 GHz and 5 GHz) optimized for clients.

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