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多項選擇題

Which of the following are forms of gigabit Ethernet that require the use of fiber optic cables？（）

A.1000Base-CX
B.1000Base-TX
C.1000Base-SX
D.10Base-T
E.1000Base-T
F.1000Base-LX

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單項選擇題

Which of the following network devices operates on Layer 1 of the OSI model？（）

A.Hub
B.Switch
C.Router
D.Bridge

單項選擇題

A network technician is installing a series of three access points to cover the entire wing of a building. Each access point has a wired connection and 802.11g is being used for the wireless transmission. Which of the following channels should be used for the access points？（）

A.Channels 1-6-11
B.Channels 1-3-5
C.Channels 7-11-1
D.Channels 2-4-6

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