Line access and avoidance of collision are the main functions of
network protocols
In random access methods, there is no access control (as there is in controlled access methods) and there is no predefined channels (as in channelization). Each station can transmit when it desires. This liberty may create collision.
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Csma/cd
Graphics. Better Franchise. QB avoidence
WAPs use CSMA/CA - Carrier Sense Multiple Access with Collision Avoidance.
All computers on a single shared access media
Avoidence
Maca uses small signalling packages,which sent before the actual package,in order to avoid collision.
Avoidence
two computers connected to the same hub AND two computers connected to the same access server
CSMA/CD (Carrier Sense Multiple Access / Collision Detect)