Which media access control protocol is used by IEEE 802.11 wireless LAN?
The IEEE 802.11 MAC protocol is a carrier sense multiple access protocol with collision avoidance (CSMA/CA).
CDMA (Code-Division Multiple Access) refers to any of several protocols used in second-generation (2G) and third-generation (3G) wireless communications. As the term implies, CDMA is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimizing the use of available bandwidth. The technology is used in ultra-high-frequency (UHF) cellular telephone systems in the 800-MHz and 1.9-GHz bands.
B) CSMA/CA is used in IEEE 802.11