Correct Answer: A,B,E
Explanation/Reference:
Incorrect Answers:
C: The OPatch and OPatchauto utilities provide you with the flexibility to analyze, troubleshoot, and patch an individual GI (Grid Infrastructure)/RAC (Real Application Cluster) home environments.
D: It is recommended that OPatch should not be invoked by 'root', if so then the CheckUserAdminPrivilege check fails. But it is possible to run OPatch with root privileges.
F: OPatchauto executes across all hosts in the associated system, using SSH as its remote execution mechanism for requisite commands, such as opatch apply.
References:
http://docs.oracle.com/cd/E24628_01/doc.121/e39376/opatch_overview.htm#OPTCH106
https://docs.oracle.com/cd/E24628_01/doc.121/e39376/opatch_commands.htm#OPTCH198