Oracle Database 19c Changed 1z0-083 Questions

Open the CDB instance in restricted mode. In CDB$ROOT, drop the UNDO tablespace. Execute ALTER DATABASE LOCAL UNDO ON in each PDB, and then restart the CDB instance.

Open the CDB instance in upgrade mode. In CDB$ROOT, execute ALTER DATABASE LOCAL UNDO ON, and then restart the CDB instance.

Open the CDB instance in upgrade mode. In each PDB, execute ALTER DATABASE LOCAL UNDO ON, create an UNDO tablespace, and then restart the CDB instance.

Open the CDB instance in restricted mode. In CDB$ROOT, execute ALTER DATABASE LOCAL UNDO ON. create an UNDO tablespace in each PDB, and then restart the CDB instance.

Open the CDB in read-only mode. In CDB$ROOT, execute ALTER DATABASE LOCAL UNDO ON, and then change the CDB to read/write mode.

Databases from the RC12C catalog are implicitly unregistered if the RC11 catalog has registered databases with same name.

Recovery catalog is resynchronized with the control files of the registered databases.

Imported databases are unregistered from the RC11 catalog.

Local and global stored scripts that have the same name as existing scripts in the RC12C catalog are automatically renamed.

All databases registered in the RC11 catalog are registered in the RC12C catalog.

Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open PDBs except PDB$SEED.

Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB opened in read/ write mode gathers object statistics for that PDB.

Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$ROOT.

System statistics can be gathered only while connected to CDB$ROOT.

Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open pluggable databases (PDBs)

Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be started and the databased be in the MOUNT state.

Backing up a database in ARCHIVE LOG mode using O/S utilities requires that the database instance be started and the database be in MOUNT state.

An Oracle database can be restored from backup files copied using O/S utilities.

Oracle data file backups, copied using an O/S utility, can be added to the RMAN catalog as IMAGE COPIES.

Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be shut down.

Oracle archive log backups, copied using an O/S utility, can be added to the RMAN catalog as a backup set.

Backing up a database in ARCHIVE LOG mode using O/S utilities requires that the database instance be started and the database be in OPEN state.