What mechanisms are specified by the IEEE 802.11 standard to attempt to prevent multiple radios
from transmitting on the RF medium at a given point in time? (Choose three)
Given: As a station moves away from the access point to which it is associated, it changes its
data rate from 54 Mbps to 48 Mbps and then to 36 Mbps.
What IEEE 802.11 term is used to describe this functionality?
If an 802.11 RF transmission reaches a receiving antenna simultaneously by direct and indirect
(reflected) paths, what effect will the reflected signal have on the signal that took the direct line-ofsight path?
You have been sent as a consultant to a customer site that is experiencing problems with some
2.4 GHz clients on their 802.11a/g network. After collecting information from the company about
the problem, your initial troubleshooting step is to find a client device experiencing performance
problems and observe its 802.11 frame exchanges in a protocol analyzer. The retransmission rate
for that client is 65% instead of the company’s baseline, which is 9%.
Based on this information, what troubleshooting step should follow to isolate the problem?
Which answer correctly completes the following sentence?
The WMM certification, created by the Wi-Fi Alliance, is based on the ___________ coordination
function with support for ___________ QoS priority.
What is a common feature of an 802.11 WLAN client utility? (Choose two)
What item is essential for performing a manual RF site survey for a warehouse facility?
Which antenna types are commonly used by indoor Wi-Fi devices in a MIMO diversity
implementation? (Choose two)
Which data rate is supported by 802.11g radios that is not supported by 802.11a radios?
What information is transmitted in the Beacon management frames of an HT access point to
communicate about backward compatibility with ERP and HR/DSSS stations? (Choose two)