With port security enabled on a switch interface for a printer, which action lets the switch learn and save the printer's MAC automatically?

Enabling sticky MAC addressing allows the switch to dynamically learn MAC addresses that connect to a port and then save them to the running configuration. If the switch reboots, these learned MAC addresses are retained. This is ideal for devices like printers that have a fixed MAC address and are not expected to change frequently. Dynamic MAC address learning is the default behavior but doesn't save learned addresses after a reboot. Static MAC addressing requires manual configuration of each MAC address, which is less efficient for initial setup. Auto MAC address learning is not a standard port security command; sticky MAC is the correct terminology for this functionality.