Given: A WLAN protocol analyzer trace reveals the following sequence of frames (excluding the ACK frames): 1) 802.11 Probe Req and 802.11 Probe Rsp 2) 802.11 Auth and then another 802.11 Auth 3)…

Given: A WLAN protocol analyzer trace reveals the following sequence of frames (excluding the ACK frames): 1) 802.11 Probe Req and 802.11 Probe Rsp 2) 802.11 Auth and then another 802.11 Auth 3) 802.11 Assoc Req and 802.11 Assoc Rsp 4) EAPOL-KEY 5) EAPOL-KEY 6) EAPOL-KEY 7) EAPOL-KEY What security mechanism is being used on the WLAN?