Which physical layer function can a network administrator perform to determine whether or not any device is sending data to the channel?

A company has a wireless network. In this network, collisions occur when more than one device
sends data at the same time. Which physical layer function can a network administrator perform to

determine whether or not any device is sending data to the channel?

A company has a wireless network. In this network, collisions occur when more than one device
sends data at the same time. Which physical layer function can a network administrator perform to

determine whether or not any device is sending data to the channel?

A.
CSMA/CD

B.
CCA

C.
CSMA/CA

D.
CCX



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