Which of the following user actions would you insert as an INTERNAL Authentication scheme?

A.
The user enters the security dynamics passcode.

B.
The user prompted for a response from the RADIUS server.

C.
The user prompted for a response from the AXENT server.

D.
The user prompted for a response from the TACACS server.

E.
The user enters an operating system account password.

Explanation:
this is the only correct answer, since we are talking about “Internal” authentication scheme, the
only valid answer is the Operating System authentication because the authentication occurs
locally to the user.
Incorrect Answers:
A: When we talk about dynamic passwords we often talk about an external security server
changing the access password in a continuos basis, the user usually see the current password
with the help of a hardware Token, an example is RSA.
B: Radius is an external security server, the authentication is checked remotely.
C: AXENT is an external security server, the authentication is checked remotely.
D: TACACS is an external security server, the authentication is checked remotely.