When securing a small office home office (SOHO) that has empty cubicles with unused network ports, which of the following can be used to secure ONLY the unused ports?

When securing a small office home office (SOHO) that has empty cubicles with unused network ports, which of the following can be used to secure ONLY the unused ports?

A.
Use DHCP addressing on the network.

B.
Disable the ports on the router or switch.

C.
Power down the router when it is not being used.

D.
Disable DNS on the network.