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單項(xiàng)選擇題

On which of the following network devices would an administrator configure an ACL?（）

A.Router
B.Hub
C.Repeater
D.NIC

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單項(xiàng)選擇題

Which of the following ports is the default telnet port?（）

A.20
B.21
C.22
D.23

單項(xiàng)選擇題

Which of the following cables is the MOST susceptible to interference?（）

A.Fiber
B.Coax
C.UTP
D.STP

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