单选题Which statement is true regarding an Ethernet collision domain?（）AIf a router is used, the collision domain includes all devices connected to the routerBIf a hub is used, the colision domain is limited to each device and the hubCIf a switch is used, the collision domain is limited to each device and the switchDIf a bridge is used, the collision domain includes all devices connected to the bridge
单选题
Which statement is true regarding an Ethernet collision domain?（）
A
If a router is used, the collision domain includes all devices connected to the router
B
If a hub is used, the colision domain is limited to each device and the hub
C
If a switch is used, the collision domain is limited to each device and the switch
D
If a bridge is used, the collision domain includes all devices connected to the bridge
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