Which two statements are true about availability audit features after migration to unified auditing?
A.
The ability of users to audit their own schema objects is not available in the post-migrated database.
B.
Operating system audit trail is available in the post-migrated database.
C.
Network auditing is available in the post-migrated database.
D.
Mandatory auditing of audit administrative actions is available in the post-migrated database.
Explanation:
https://docs.oracle.com/database/121/DBSEG/audit_changes.htm#DBSEG341
confirmed:
https://docs.oracle.com/database/121/DBSEG/audit_changes.htm#DBSEG341
A, D