Peer-to-peer blocking (also called client isolation) is useful in open or public WLANs to prevent devices from communicating directly with each other.
B. In public hot-spots, isolating users helps protect against malware spread, snooping, and attacks from nearby devices.
Incorrect:
A. In home networks, peer-to-peer communication is often desired for file sharing.
C. Voice over Wi-Fi may rely on peer communication (e.g., multicast).
D. In university setups using multicast, peer-to-peer restrictions could hinder functionality.
[References:, , CWSP-208 Study Guide, Chapter 3 (Access Control and WLAN Policies), , CWNP WLAN Best Practices for Public Networks]
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