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单项选择题The root id is set so that direct login is disabled.  Information must be reviewed relating to when root access was obtained.  In which of the following files is this information located?()

A、 /var/adm/sulog 

B、 /var/adm/wtmp 

C、 /etc/security/user 

D、 /etc/security/failedlogin

  • A
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