Which Background processes started/stopped during database startup and shutdown ?

Which Background processes started/stopped during database startup and shutdown ?

startup sequence:
Mon Apr 15 16:03:30 2019
PMON started with pid=2, OS id=5336
Mon Apr 15 16:03:30 2019
PSP0 started with pid=3, OS id=5340
Mon Apr 15 16:03:32 2019
GEN0 started with pid=5, OS id=5350
Mon Apr 15 16:03:32 2019
DIAG started with pid=6, OS id=5354

shutdown sequence:
Shutting down instance (immediate)
Stopping background process SMCO
Shutting down instance: further logons disabled
Stopping background process QMNC
Mon Apr 15 16:20:52 2019
Stopping background process CJQ0
Stopping background process MMNL
Stopping background process MMON

Note:

It is applicabe for 11g/12cR2