CyberCertPrepNetwork FundamentalsNetwork DevicesEASYFree question
What is the difference between a standalone access point and a controller-based ("thin" or "lightweight") access point, and what is a key operational benefit of the controller model?
- A.A standalone AP must be connected via fiber; a lightweight AP can use copper Ethernet
- B.A lightweight AP requires more processing power than a standalone AP because it performs all encryption locally
- C.A standalone ("fat") AP manages its own configuration locally; a lightweight AP offloads configuration, RF management, and security policies to a Wireless LAN Controller (WLC), enabling centralized management, consistent policy, and seamless roaming across all APs
- D.Controller-based APs cannot support WPA3 because the WLC terminates encryption before forwarding
Why C is correct
In a controller-based (lightweight/thin AP) architecture, APs use CAPWAP (UDP 5246/5247) tunnels to the WLC. The WLC pushes configuration, manages RF channels/power (RRM), enforces security policies, and facilitates fast Layer 2/3 roaming. Standalone APs are individually configured, which is manageable for 1-5 APs but operationally expensive for hundreds. Options B, C, D are incorrect.
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