CWSP-205 Question #177: Real Exam Question with Answer & Explanation

In an effort to optimize WLAN performance ABC Company has already upgraded their infrastructure from 802 11b/gto802 11n. ABC has always been highly security conscious but they are concerned with security threats introduced by incompatibilities between 802.11n and 802.11a/g in the past.ABC has performed manual and automated scans with products that were originally designed for use in 802 11a/g networks.Including laptop-based spectrum and protocol analyzers as well as an overlay 802 11a/g WIPS solution. ABC has sought your input to understand and respond to potential security threats. In ABC's network environment, what type of devices would be capable of identifying rouge APs that use HT Greenfield 40 MHZ channels? (Choose 3)