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A. Port security can be configured for ports supporting VoIP.
B. With port security configured， four MAC addresses are allowed by default.
C. The network administrator must manually enter the MAC address for each device in order for  the switch to allow connectivity.
D.  Withsecurity configured， only one MAC addresses is allowed by default.  
E. Port security cannot be configured for ports supporting VoIP.

A. Connecting a host with MAC address 0000.0000.4147 will move interface FastEthernet0/2 into  error disabled state.
B. The host with address 0000.0000.4141 is removed from the secure address list after 5 seconds  of inactivity.
C. The sticky secure MAC addresses are treated as static secure MAC addresses after the  running configuration is saved to the startup configuration and the switch is restarted.
D. Interface FastEthernet0/2 is a voice VLAN port.
E. The host with address 0000.0000.000b is removed from the secure address list after 300  seconds.