Which of the following would be the MOST secure setup that conforms to the organization’s requirements?

An organization wants to set up a wireless network in the most secure way. Budget is not a major consideration, and the organization is willing to accept some complexity when clients are connecting. It is also willing to deny wireless connectivity for clients who cannot be connected in the most secure manner.

Which of the following would be the MOST secure setup that conforms to the organization’s requirements?
A . Enable WPA2-PSK for older clients and WPA2-Enterprise for all other clients.
B . Enable WPA2-PSK, disable all other modes, and implement MAC filtering along with port security.
C . Use WPA2-Enterprise with RADIUS and disable pre-shared keys.
D . Use WPA2-PSK with a 24-character complex password and change the password monthly.

Answer: D