When would you expect to see a Reassociation Request frame?

• A.Every time a STA associates to an AP to which it has previously been associated
• B.Only when a STA is using FT roaming
• C.Only when a STA roams back to an AP it has previously been associated with
• D.Every time a STA roams

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During an initial install of a controller-based WLAN, the APs are not locating the WLAN controller. The controller is two router hops away from the nearest AP. DHCP is not used. When performing a packet trace, you see a DNS response code of 3 targeted at one of the APs.
What is the problem?

• A.The controller host record has not been created in the DNS server
• B.The authentication to the DNS server failed
• C.The DNS server is not authoritative for the domain
• D.The router is not forwarding packets to the DNS server

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You are attempting to determine timing information within a packet capture of a WLAN protocol analyzer.
What time is used to display the time the packet was captured based on the system clock in the computer?

• A.Relative
• B.Arrival
• C.Interframe
• D.Delta

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Finish the statement:
It is possible to distinguish between_______22 MHz transmissions and________20 MHz transmissions when looking at an FFT plot.

• A.HR/DSSS and ERP
• B.OFDM and HT
• C.ERP and VHT
• D.HT and VHT

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Given: A MU-MIMO sounding exchange includes the AP transmitting an NDP Announcement frame followed by the NDP and the MU-STAs response with a Compressed Beamforming Frame containing the Feedback matrix.
How often does this MU-MIMO sounding exchange happen?

• A.Once for each MU-MIMO group
• B.Before every SU-MIMO frame transmission
• C.At regular intervals
• D.Never; this exchange is only used by UL OFDMA

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