A network administrator needs to configure port security on a switch.
Which two statements are true? (Choose two.)
A . The network administrator can apply port security to dynamic access ports.
B . When dynamic MAC address learning is enabled on an interface, the switch can learn new addresses, up to the maximum defined.
C . The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.
D . The network administrator can configure static secure or sticky secure MAC addresses in the voice VLA
F . The network administrator can apply port security to EtherChannels.
Answer: B, C
Explanation:
Follow these guidelines when configuring port security:
+ Port security can only be configured on static access ports, trunk ports, or 802.1Q tunnel ports. -> A is not correct.
+ A secure port cannot be a dynamic access port.
+ A secure port cannot be a destination port for Switched Port Analyzer (SPAN).
+ A secure port cannot belong to a Fast EtherChannel or Gigabit EtherChannel port group. -> E is not correct
+ You cannot configure static secure or sticky secure MAC addresses on a voice VLAN. -> D is not correct.
+ When you enable port security on an interface that is also configured with a voice VLAN, you must set the maximum allowed secure addresses on the port to at least two.
+ If any type of port security is enabled on the access VLAN, dynamic port security is automatically enabled on the voice VLAN.
+ When a voice VLAN is configured on a secure port that is also configured as a sticky secure port, all addresses seen on the voice VLAN are learned as dynamic secure addresses, and all addresses seen on the access VLAN (to which the port belongs) are learned as sticky secure addresses.
+ The switch does not support port security aging of sticky secure MAC addresses.
+ The protect and restrict options cannot be simultaneously enabled on an interface.
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