When would be the best time to run an Exadata health check (exachk)?

A.
before patching, before upgrades, before backups, and on a regular basis

B.
after patching, after upgrades, and after backups

C.
only when advised by Oracle Support

D.
before and after patching, when advised by Oracle Support, andona regular basis

E.
only after a hardware failure

F.
monthly and after a hardware failure

Explanation:
#1: Check for updates frequently.
#2: Execute before & after system changes.
#3: Make part of regular planned maintenance