【单选题】
Which of the following methods of user authentication is the MOST secure?()
A、CHAP
B、Kerberos
C、TACACS
D、EAP
A、CHAP
B、Kerberos
C、TACACS
D、EAP
A、cat /proc/usr/lparchk B、cat /proc/ppc64/lparcfg C、/var/adm/tools/res_list D、/var/adm/tools/lparalloc