The concept of boot targets is a whole new ball game. Boot targets are used when working with systemd. We can see increased performance, because only requests for a particular socket are started as needed. Also, systemd emulates init for compatibility, while in the background systemd is doing the work. When we use boot targets, we work with units. For a given boot target, a number of daemons reside. Let's see the available boot targets in an Ubuntu distribution:
root@ubuntu:/home/philip# systemctl list-units --type target
UNIT LOAD ACTIVE SUB DESCRIPTION
basic.target loaded active active Basic System
cryptsetup.target loaded active active Encrypted Volumes
getty.target loaded active active Login Prompts
graphical.target loaded active active Graphical Interface
local-fs-pre.target loaded active active Local File Systems...