Question 4
In an effort to optimize WLAN performance, ABC Company has upgraded their WLAN infrastructure from 802.11a/g to 802.11n. 802.11a/g clients are still supported and are used throughout ABC's facility. ABC has always been highly security conscious, but due to budget limitations, they have not yet updated their overlay WIPS solution to 802.11n or 802.11ac.
Given ABC's deployment strategy, what security risks would not be detected by the 802.11a/g WIPS?
Hijacking attack performed by using a rogue 802.11n AP against an 802.11a client
Rogue AP operating in Greenfield 40 MHz-only mode
802.11a STA performing a deauthentication attack against 802.11n APs
802.11n client spoofing the MAC address of an authorized 802.11n client
Correct answer: B