Given: You have been hired as a consultant to troubleshoot a performance problem with an 802.11 ERP network. You begin troubleshooting by finding a WLAN client device that is experiencing throughput problems and viewing its 802.11 frame exchanges in an 802.11 protocol analyzer. The retransmission rate is 40% instead of the company’s baseline of 3%. How should you proceed in further troubleshooting this problem? Choose 2

A.
Use a protocol analyzer to look for MAC layerDoS attacks such as EAPoL-Start floods.

B.
Use a spectrum analyzer to look for a noise floor value significantly higher than -95dBm.

C.
Use a laptop-based site survey planning and analysis tool to optimize AP placement.

D.
Use a protocol analyzer to look for increasedreassociations due to a low roaming threshold.

E.
Use a spectrum analyzer to look for a 2.4 GHz RF source with a high duty cycle value.

F.
Use a Wi-Fi endpoint security system to monitor retransmissions on the client device in real time.