Which of the following steps should also be taken to harden the smart switch?

A smart switch has the ability to monitor electrical levels and shut off power to a building in the event of power surge or other fault situation. The switch was installed on a wired network in a hospital and is monitored by the facilities department via a cloud application. The security administrator isolated the switch on a separate VLAN and set up a patch routine.

Which of the following steps should also be taken to harden the smart switch?
A . Set up an air gap for the switch.
B . Change the default password for the switch.
C . Place the switch In a Faraday cage.
D . Install a cable lock on the switch

Answer: B