You have installed a new 802.11ac WLAN configured with 80 MHz channels. Users in one area are complaining about poor performance. This area is currently served by a single AP. You take a spectrum analysis capture in the poor performing area. While examining the waterfall plot you notice the airtime utilization is higher on the […]

In a Spectrum Analyzer the Swept Spectrogram plot displays what information? A. The RF time domain B. RF power present at a particular frequency over the course of time C. Wi-Fi Device information D. Duty cycle in the frequency domain

ABC International has installed a new smart ZigBee controlled lighting system. However, the network team is concerned that this new system will interface with the existing WLAN and has asked you to investigate the impact of the two systems operating simultaneously in the 2.4 GHz band. When performing Spectrum Analysis, which question could you answer […]

You’re the WLAN administrator for a large retailer based at the HQ in New York. The London-based office has been complaining about WLAN disconnections around lunch time each day. You suspect this might be interference from the staff microwave, how might you test your theory from the New York office? A. Access the microwave remotely […]

Which one of the following is required for Wi-Fi integration in laptop-based Spectrum Analyzer software? A. A supported WLAN adaptor with a customized driver B. Any 802.11 wireless adaptor C. A dual radio spectrum analyzer card D. SNMP read credentials to the WLAN controller or APs

802.11k Neighbor Requests and Neighbor Reports are sent in what type of Management Frames? A. RRM B. Action C. Beacon D. Reassociation Request and Reassociation Response

The network administrator at ABC Engineering has taken a large packet capture from one of their APs running in monitor mode. She has very little knowledge of 802.11 protocols but would like to use the capture file to evaluate the overall health and performance of their wireless network. When she asks your advice, which tool […]

Which one of the these is the most important in the WLAN troubleshooting methodology among those listed? A. Interview the network manager about the issues being experienced B. Talk to the end users about their experiences C. Observe the problem D. Obtain detailed knowledge of the wireless vendors debug and logging options

Protocol analyzers may present field values in either binary, decimal or hexadecimal. What precedes a hexadecimal value to indicate it is hexadecimal? A. 0x B. % C. HEX D. 16x

You are performing a multiple adapter channel aggregation capture to troubleshoot a VoIP roaming problem and would like to measure the roaming time from the last VoIP packet sent on the old AP’s channel to the first VoIP packet sent on the new AP’s channel. Which timing column in the packet view would measure this […]