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…

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?