A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network throught port fa0/1.

If any other device is detected, the port is to drop frames from this device. The administrator configured the interface and tested it with successful pings from PC_A to RouterA, and then observe the output from these two show commands.

Which two of these changes are necessary for SwitchA to meet the requirements? (Choose two)

A.
Configure port security to shut down the interface in the event of a violation.

B.
Enable port security on the interface,

C.
Enable port security globally

D.
Configure port security to allow only one learned MAC address.

E.
Port security interface counters need to be cleared before using the show command.

F.
The port security configuration needs to be saved to NVRAM before it can become active.