A smart switch has the ability to monitor electrical levels and shut off power to a building in the event of power surge 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 patching routine. Which of the following steps should also be taken to harden the smart switch? 

Answer options:

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.

B