What prevents each station from using all the airtime when other client stations are actively

communicating in the same BSS is CSMA/C

A . CSMA/CA stands for Carrier Sense Multiple Access with Collision Avoidance and is a media access

control method used by WLAN devices to share the wireless medium. CSMA/CA works by having

each station sense the medium before transmitting a frame. If the medium is busy (i.e., another

station is transmitting), the station defers its transmission until the medium is idle. If the medium is

idle, the station waits for a random backoff period before transmitting. This way, CSMA/CA reduces

the chances of collisions and ensures fair access to the medium for all stations. CSMA/CA also uses

positive acknowledgements to confirm successful transmissions and retransmissions to recover from

errors. CSMA/CD, DOS prevention, and OFDMA are not used by WLAN devices in a

BSS. Reference: [CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-

109], page 108; [CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-

109], page 98.