In a manufacturing facility with highly reflective materials, you are planning an upgrade to your existing
802.11b solution. You have chosen a dual-band 802.11n infrastructure product for this purpose. Your client
applications include:
Handheld scanners — for inventory management
Toughbooks (laptops) — mounted on forklifts for inventory and workflow management
VoWiFi phones — used by select employees throughout the facility

You are evaluating all of the 802.11n enhancements and determining which features to enable for your
environment and applications.
In this scenario, what 802.11n enhancements should NOT be enabled on the 2.4 GHz radio of the new
APs? (Choose 2)

A.
40 MHz channels

B.
Short guard intervals

C.
Block Acknowledgments

D.
Frame aggregation

E.
MRC

F.
STBC