单选题At Layer 2 of the OSI model, which component connects a host to the network media?（）AHubBSwitchCBridgeDNICETransceiver
单选题
At Layer 2 of the OSI model, which component connects a host to the network media?（）
A
Hub
B
Switch
C
Bridge
D
NIC
E
Transceiver
参考解析
解析：
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