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 routerB
If a hub is used, the colision domain is limited to each device and the hubC
If a switch is used,
题目内容(请给出正确答案)
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
