Which port-security feature allows a switch to learn MAC addresses dynamically and add them to the running configuration?
正解:C
Explanation/Reference: Explanation: You can configure an interface to convert the dynamic MAC addresses to sticky secure MAC addresses and to add them to the running configuration by enabling sticky learning. To enable sticky learning, enter the switchport port-security mac-address sticky interface configuration command. When you enter this command, the interface converts all the dynamic secure MAC addresses, including those that were dynamically learned before sticky learning was enabled, to sticky secure MAC addresses. Reference: https://learningnetwork.cisco.com/thread/27768