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多項選擇題

The LAN needs are expanding at the Testking corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the TestKing network.Which of the following are layer 1 devices that you can use?()

A. A switch.
B. A router.
C. A network adapter card.
D. A hub.
E. A repeater.

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