When would you expect to see a Reassociation Request frame?

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

Correct Answer: D

Which piece of information Is not transmitted in an HT PDDU header?

1. A. Number of Spatial Streams
2. B. PPDU length
3. C. Channel number
4. D. MCS index

Correct Answer: D