Collision domain is the group of hosts in which collision

can occur but broadcast domain consists of all the groups of

hosts that can proceed the broadcast frame. Broadcast domain

may be collision domain but Collision domain may not be

broadcast domain

A collision domain is an Ethernet term used to descrbe a

network,collection of devices in which one particular

device sends a packet on a network segment.

A broadcast domaun is where a set of all device on that

same segment hear all broadcasts sent on that segment.