Which type of frames are ACK and CF-ACK?
A . control
B . management
C . RTS/CTS
D . association
Answer: A
Explanation:
Wireless LANs come in three frame types: Frame Types Table Management Control Data Beacon Request to Send (RTS) Simple data Probe Request Clear to Send (CTS) Null function Probe Response Acknowledgment Data+CF-ACK Association Request Power-Save-Poll (PS-Poll) Data+CF-Poll Association Response Contention Free End (CF-End) Data+CF-Ack Authentication Request Contention Free End + Acknowledgment (CF-End +ACK) ACK+CF-Poll Authentication Response CF-ACK Deauthentication CF-ACK+CF-Poll Reassociation request Reassociation response Announcement traffic indication message (ATIM)
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