单项选择题 A System p administrator is investigating a possible security breech and wants to review  information about failed login attempts to the system.  Which of the following commands will show this（）

单项选择题 Whichofthefollowingcommandswouldasystemadministratorusetoinitiatearescanofthe/etc/inittabfile（）

单项选择题 An AIX server will not boot in normal mode and the server must be booted into maintenance  mode to rebuild the boot logical volume. A NIM master is not defined in this environment.  How is the system booted into maintenance mode to perform this task （）