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Option C. The /etc/inittab configuration file should be modified to disable the ctrl-alt-delete key combination in systems that use the SysV init system. The inittab file is a configuration file used by the init program to determine the system's default runlevel and the processes that should be started at boot time. To disable the ctrl-alt-delete key combination, you can comment out the line in the inittab file that starts the process that handles the key combination. Option A: The /etc/keys file does not exist. Option B: The /proc/keys file is a virtual file that displays information about the kernel's key management. It is not used to configure the system's behavior. Option D: The /proc/inittab file does not exist. Option E: The /etc/reboot file is not used to configure the system's behavior. It is a script that is executed by the reboot and halts commands to stop the system.
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