Not only do bridges and switches separate collision domains but routers also perform this task.
Bridges, Switches and Routers will all separate collision domains.
Network+ Guide to Networks answer: Bridge, Switch, Router
in my opinion there is no any collision domain in the router......but switch has collision domains for each interfaces & hub has one collision domain
On shared-media networks (i.e. hubs or pure ethernets), routers break up broadcast domains and bridges break up collision domains. Routers also break up collision domains. On switched networks, routers break up broadcast domains, and every switch port is its own separate collision domain.
Switches increase the number of collision domains in the network.
switches
by allowing the interconnection of segments with different speeds
In Router one and in switch each port having collision domain.
When using network switches, each port on the switch is its own collision domain.
Like a switch, a router places nodes that are connected to it in separate collision domains.
switches and your mama.!! lol haha
For any amount of clients connected to a hub you will get a total of 1 collision domain. A hub is a device that simply repeats all of the signals from the ports and does not separate clients into separate collision domains.