CompTIA A+ 220-902 Question G-94

A user attempts to remote into their machine at night but cannot connect. The user believes that someone is unplugging their computer from the network at night and plugging in a personal machine. Which of the following security measures would BEST prevent this behavior from continuing?

A. Limit the port to a specific MAC address.
B. Set the port to only activate during business hours.
C. Disable DHCP on the network router.
D. Deactivate the port that is being used from the switch.

Correct Answer: A