202.1 - Customizing SysV-init system startup

Weight: 3

Description: Candidates should be able to query and modify the behaviour of system services at various targets / run levels. A thorough understanding of the systemd, SysV Init and the Linux boot process is required. This objective includes interacting with systemd targets and SysV init run levels.

Key Knowledge Areas:

Systemd

SysV init

Linux Standard Base Specification (LSB)

Terms and Utilities:

/usr/lib/systemd/

/etc/systemd/

/run/systemd/

systemctl

systemd-delta

/etc/inittab

/etc/init.d/

/etc/rc.d/

chkconfig

update-rc.d

init and telinit