CompTIA Security+ Question C-24

Which of the following services are used to support authentication services for several local devices from a central location without the use of tokens?

B. Smartcards
C. Biometrics
D. Kerberos

Answer: A

ACACS allows a client to accept a username and password and send a query to a TACACS authentication server. It would determine whether to accept or deny the authentication request and send a response back. The TIP would then allow access or not based upon the response, not tokens.