Which protocol is the full implementation of the 802.11i standard?

The full implementation of the 802.11i standard is WPA2. The 802.11i standard was developed to enhance the security of wireless networks and includes provisions for stronger authentication and encryption methods. WPA2 specifically utilizes the Advanced Encryption Standard (AES) for encryption, which is considered much more secure than the methods used in earlier standards.

While WPA, the predecessor to WPA2, initially implemented some aspects of the 802.11i standard, it was not fully compliant. WPA used TKIP (Temporal Key Integrity Protocol) as a temporary solution to address vulnerabilities in WEP, which was inadequate for modern security needs. TKIP is not a protocol that fully aligns with 802.11i since it ultimately relies on WEP's underlying weaknesses.

WEP itself is an outdated encryption standard that was part of the earlier wireless standards but was intended to provide minimal security. It has since been deemed insecure and is not compliant with the enhancements offered in 802.11i.

Thus, WPA2 stands out as the correct answer, as it fully embraces the enhanced security protocols outlined in the 802.11i standard, providing robust authentication and encryption for modern wireless networks.