Collusion & Broadcast Domain

Layer 1: Cable, Repeater, Hub.
Layer2: Bridge, Switch, PC LAN Card.
Layer3: Router.

Same device cross cable.
Example: Hub-Hub, Switch-Switch, Router to Router, Switch-PC,Router to PC etc.

Different device straight cable.
Example: Hub-PC, Switch-Router, Router-Hub etc. 

Hub: 1 collusion domain, 1 Broadcast domain.
Bridge: Every interface is a collusion domain, Total 1 broadcast domain.
Switch: Every interface is a collusion domain, Total 1 broadcast domain. 
Router: Every interface is a collusion domain and a broadcast domain.  

You can download the Packet Tracer file form here: Collusion & Broadcast Domain.pkt