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單項選擇題

If a host on a network has the address 172.16.45.14/30, what is the address of the subnetwork to which this host belongs?（）

A. 172.16.45.0
B. 172.16.45.4
C. 172.16.45.8
D. 172.16.45.12
E. 172.16.45.18

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多項選擇題

CDP is running between two TestKing devices. What information is supplied by CDP?（）

A. Device identifiers
B. Capabilities list
C. Platform
D. Route identifier
E. Neighbor traffic data

多項選擇題

Which Layer 1 devices can be used to enlarge the area covered by a single LAN segment?（）

A. Switch
B. Router
C. NIC
D. hub
E. Repeater
F. RJ-45 transceiver

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