In a Clause 18 (HR-DSSS) frame’s PLCP header, what does the 16-bit length field indicate?

XYZ Corporation is renting space in a multi-tenant office building and has recently installed a new ERP WLAN in their office. The network administrator has very little experience with WLANs, and has recently purchased a WLAN protocol analyzer for diagnostic use. He has attended a wireless administration class and understands basic WLAN operation. During the course of troubleshooting a performance problem, the administrator cannot understand why he is seeing ATIM frames, CF-End frames, and PS-Poll frames on channel 2 all at the same time. You are hired by the administrator as a consultant to explain why this is happening. Which explanations are plausible?

An IEEE 802.11 protocol analyzer using a single radio, dual-band 2.4 GHz (ERP) / 5 GHz (OFDM) PC Card is able to perform which tasks?

Given: An EDCA QoS BSS is operating as a Robust Security Network (RSN). Two QoS STAs in the QoS BSS are using a Direct Link to communicate.

When the RTS/CTS threshold is exceeded for a frame to be transmitted between the two QoS STAs, what is the frame exchange sequence, including interframe spaces?

When an access point sends an RTS frame, the duration field will contain an amount of time, measured in microseconds, equal to which of the following?

The IEEE 802.11 (as amended) Dynamic Frequency Selection (DFS) service is capable of performing what functions?

In an ERP QoS BSS using APSD, when is the Power Management subfield of the Frame Control field set to a value of 1?

Which statement is FALSE regarding use of admission control in a QoS BSS?

Which statements accurately describe IEEE 802.11 EDCA collision handling in a WMM compliant infrastructure WLAN?

What is indicated to a QoS AP when a QoS STA sets U-APSD Flag bits to 1 in Association and Reassociation frames?