Given: The Frame Check Sequence (FCS) is a 32 CRC used for error detection. The CRC is calculated over what?
Given: The Frame Check Sequence (FCS) is a 32 CRC used for error detection. The CRC is calculated over what?A . Frame Body onlyB . Mac Header and Frame Body onlyC . PHY Header, MAC Header and Frame BodyD . PHY Header and MAC Header onlyView AnswerAnswer: B
Which one of the following is required for Wi-Fi integration in laptop-based Spectrum Analyzer software?
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 driverB . Any 802.11 wireless adaptorC . A dual radio spectrum analyzer cardD . SNMP read credentials to the WLAN controller or APsView AnswerAnswer: C
Which one of the following should be the first step when troubleshooting a WLAN issue?
Which one of the following should be the first step when troubleshooting a WLAN issue?A . Identify capture locationsB . Identify probable causesC . Perform an initial WLAN scan and see if any obvious issues stand outD . Define the problemView AnswerAnswer: D
Finish the statement. It is possible to distinguish between _______and ______20 MHz transmissions when looking at an FFT plot.
Finish the statement. It is possible to distinguish between _______and ______20 MHz transmissions when looking at an FFT plot.A . HR/DSSS and ERPB . ERP and VHTC . HT and VHTD . OFDM and HTView AnswerAnswer: C
What is the function of the PMD sub-layer?
What is the function of the PMD sub-layer?A . Converts 1s and 0s given to it by the PLCP sub-layer into the appropriate RF signalsB . Provides framingC . Adds a PHY preamble and header to a PSDUD . Performs A-MPDUView AnswerAnswer: A
Which one of the these is the most important in the WLAN troubleshooting methodology among those listed?
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 experiencedB . Talk to the end users about their experiencesC . Observe the problemD . Obtain detailed knowledge of the wireless vendors debug and...
interference source?
Which common feature of a Spectrum Analyzer would be the best to help you locate a non-802.11 interference source?A . Max holdB . Location filterC . Waterfall plotD . Device finderView AnswerAnswer: D
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...
When a data frame is encrypted with WPA2, to which portion of the frame is the encryption applied?
When a data frame is encrypted with WPA2, to which portion of the frame is the encryption applied?A . Frame body excluding the LLCB . Frame body including the LLCC . Frame body and MAC HeaderD . The whole MPDUView AnswerAnswer: C
Which frames will be transmitted?
A client is operating in an unstable RF environment. Out of five data frames transmitted to the client it only receives four. The client sends a Block Ack to acknowledge the receipt of these four frames but due to frame corruption the Block Ack is not received by the AP....