You must disable OS authentication for database administrative users on a RAC database.
Which option must you use to do this?
Set sqlnet.aothentication_sebvices=(NONe» In sqlnet.ora on the database server.
Remove all OS users from OS groups: osdba, osoper, osbackupdba, osdgdba, osrmdba, OSASMADMIN, OSASMDBA.
Set REMOTE_LOGIH_PASSWORDFILE = EXCLUSIVE In the init.ora file.
Set REMOTE_OS_AUTHENT = FALSE In the init.ora file.
Submit