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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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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 collision 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
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考题
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
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多选题Which two statements are true regarding an Ethernet collision domain?（）AIf a switch is used, the collision domain is limited to each device and the switchBIf a hub is used, the collision domain is limited to each device and the hubCIf a hub is used, the collision domain includes all devices connected to the hubDIf a switch is used, the collision domain includes all devices connected to the switch
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Synonyms can be created only for a table B
Synonyms are used to reference only those tables that are owned by another user C
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多选题Which two statements are true regarding an Ethernet collision domain?（）AIf a switch is used, the collision domain is limited to each device and the switch.BIf a hub is used, the collision domain is limited to each device and the hub.CIf a hub is used, the collision domain includes all devices connected to the hub.DIf a switch is used, the collision domain includes all devices connected to the switch.
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多选题Which two statements are true regarding an Ethernet collision domain?（）AThe likelihood of collisions occurring increases when a switch is used.BThe likelihood of collisions occurring increases when a hub is used.CIf a hub is used, the collision domain is limited to each device and the hub.DIf a switch is used, the collision domain is limited to each device and the switch.
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多选题Which of the following a true statements regarding the use of VLANs to segment anetwork? （）AThey increase the size of collision domainsBThey allow logical grouping of users by function.CThey can enhance network security.DThey increase the size of the broadcast domain while decreasing the number of collision domains.EThey increase the number of broadcast domains while decreasing the size of the broadcast domains.FThey simplify switch administration.
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