CompTIA Exam Questions

Which of the following is the BEST way to prevent new users from connecting to a wireless access poi

Which of the following is the BEST way to prevent new users from connecting to a wireless access
point, but still allow already connected users to continue to connect?

A.
Create a MAC filter containing the current users.

B.
Turn off SSID broadcast.

C.
Change the encryption type to AES 256-bit for current users.

D.
Reduce the signal strength to 0 percent.