What is the function of AC in a wireless network? (Multiple choice)

Question

Options

• ACentrally manage APs
• BRealize the roaming function
• CSend a beacon frame
• DWireless Intrusion Detection

• A
  79% (22)
• C
  21% (6)

Explanation

An AC (Access Controller), also called a Wireless LAN Controller (WLC), sits at the core of a centralized WLAN architecture and centrally manages APs (A) by pushing configuration, firmware, and policies to them - this is its defining purpose. It also enables seamless roaming (B) by maintaining client session state and coordinating handoffs between APs so users don't drop connections when moving, and it can perform Wireless Intrusion Detection (D) by aggregating RF data from all managed APs to detect rogue devices and attacks across the entire network.

Option C is wrong because beacon frames are broadcast by individual APs, not the AC - APs advertise SSIDs and network parameters locally; the AC never touches the air itself.

Memory tip: Think of the AC as the "silent controller behind the scenes" - it manages, coordinates, and watches (A/B/D), but it never transmits wirelessly. Anything that requires actually sending radio signals (like beacons) belongs to the AP, not the AC.

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