Which of the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct answers.)
C. init 1: This command changes the runlevel to 1, which is typically the single-user or maintenance mode.
D. telinit 1: Similar to the init command, telinit 1 transitions the system to runlevel 1.
Option A, shutdown -R 1 now, is not typically used to directly change the runlevel to maintenance mode. It's more commonly used for rebooting the system.
Option B, shutdown -single now, is not a valid option for changing the runlevel to maintenance mode. The correct option for shutdown would be shutdown -r now to initiate a reboot
CD are correct
It is safe to do maintenance operation in single user mode
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