多項(xiàng)選擇題Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch?（）

A.SW1#show swithport port-security interface FastEthernet 0/12
B.SW1#show swithport port-secure interface FastEthernet 0/12
C.SW1#show port-secure interface FastEthernet 0/12
D.SW1#show running-config


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1.多項(xiàng)選擇題下面接口為物理接口的有（）。

A.dialer
B.語(yǔ)音接口
C.serial口
D.子接口
E.CE1/PRI接口
F.虛擬接口模板
G.ISDNBRI接口
H.備份中心邏輯通道

2.多項(xiàng)選擇題Which of the following statements are true regarding bridges and switches?（）

A.Switches are primarily software based while bridges are hardware based.
B.Both bridges and switches forward Layer 2 broadcasts.
C.Bridges are frequently faster than switches.
D.Switches have a higher number of ports than most bridges.
E.Bridges define broadcast domains while switches define collision domains.
F.Both bridges and switches make forwarding decisions based on Layer 2 addresses.