How do you explain this behavior?

Using a portable analyzer you perform a packet capture next to a client STA and you can see that the STA is associated to a BSS. You observe the STA sending packets to the AP and the AP sending packets to the STA. Less the 2% of all packets are...

December 11, 2023 No Comments READ MORE +

hexadecimal value to indicate it is hexadecimal?

Protocol analyzers may present field values in either binary, decimal or hexadecimal. What precedes a hexadecimal value to indicate it is hexadecimal?A . 0xB . %C . HEXD . 16xView AnswerAnswer: A

December 9, 2023 No Comments READ MORE +

Which of the following issues did you identify from the spectrum analysis?

A manufacturing facility has installed a new automation system which incorporates an 802.11 wireless network. The automation system is controlled from tablet computers connected via the WLAN. However, the automation system has not gone live due to problem with the tablets connecting to the WLAN. The WLAN vendor has been...

December 9, 2023 No Comments READ MORE +

In a Spectrum Analyzer the Swept Spectrogram plot displays what information?

In a Spectrum Analyzer the Swept Spectrogram plot displays what information?A . The RF time domainB . RF power present at a particular frequency over the course of timeC . Wi-Fi Device informationD . Duty cycle in the frequency domainView AnswerAnswer: D

December 8, 2023 No Comments READ MORE +

Which one of the best following is an advantage of using display filters instead of capture-time filters?

Which one of the best following is an advantage of using display filters instead of capture-time filters?A . Display filters allow for focused analysis on just the packets of interestB . Once created display filters are reusable for later capturesC . Display filters only hide the packets from view and...

December 7, 2023 No Comments READ MORE +

Which timing column in the packet view would measure this for you?

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...

December 6, 2023 No Comments READ MORE +

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 by looking at the FFT plot?

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,...

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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 do you recommend she opens the packet capture file with?

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...

December 5, 2023 No Comments READ MORE +

What do you conclude?

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...

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When configuring a long term, forensic packet capture and saving all packets to disk which of the following is not a consideration?

When configuring a long term, forensic packet capture and saving all packets to disk which of the following is not a consideration?A . Total capture storage spaceB . Individual trace file sizeC . Real-time packet decodesD . Analyzer locationView AnswerAnswer: B

December 4, 2023 No Comments READ MORE +