Which wireless security protocol is also known as IEEE 802.11i?

WPA2 (Wi-Fi Protected Access 2) is the full implementation of IEEE 802.11i, which mandates AES-CCMP as the core encryption mechanism, replacing the weaker RC4-based protocols used by WEP and early WPA. The 802.11i amendment was ratified in 2004 and defines the robust security network (RSN) architecture that WPA2 certifies.

WEP (Wired Equivalent Privacy) is an older, cryptographically broken wireless security protocol that predates and is replaced by IEEE 802.11i.

TKIP (Temporal Key Integrity Protocol) is the encryption protocol used in the transitional WPA standard, not the full 802.11i specification.

EAP (Extensible Authentication Protocol) is an authentication framework used within 802.1X, not a wireless security protocol standard itself.