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單項選擇題

Which of the following does a star ring topology use for data transfer?（）

A.CSMA/CD
B.CSMA/CA
C.CHAP
D.Token passing

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單項選擇題

Which of the following network hardware allows the MOST network traffic collisions?（）

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

單項選擇題

In the OSI model, which of the following layers would be the cause of a session time-out while browsing the web?（）

A.Laye r2
B.Layer 3
C.Layer 5
D.Layer 7

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