Which of the following is mainly used for remote access into the network?
A.
XTACACS
B.
TACACS+
C.
Kerberos
D.
RADIUS
Explanation:
Most gateways that control access to the network have a RADIUS client component that communicates with the RADIUS server. Therefore, it can be inferred that
RADIUS is primarily used for remote access.
Incorrect Answers:
A: XTACACS has been replaced by RADIUS and TACACS+.
B: The separate components of the TACACS+ protocol is segregated and handled on different servers, whereas the RADIUS protocol is centralized. This means
that not only TACACS+ is used by the TACACS+ protocol for remote access.
C: Kerberos is primarily used for the protection for logon credentials.http://en.wikipedia.org/wiki/RADIUS
http://en.wikipedia.org/wiki/TACACS
http://en.wikipedia.org/wiki/Kerberos_(protocol)