Which two are true about a Recovery Manager (RMAN) duplication without a target connection?

• A.RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.
• B.The undo tablespace clause is always required when no connection exists to the recovery catalog and the target database is closed.
• C.The undo tablespace clause is always required when no connection exists to the target instance.
• D.RMAN SBT-based backups of the database to be duplicated can be used by the auxiliary instance.
• E.RMAN "pushes" the backups of the database to be duplicated over the network to the auxiliary instance.

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Which three are true about using an RMAN Recovery Catalog with a pluggable database (PDB) target connection in Oracle Database 19c and later releases? (Choose three.)

• A.The base catalog must be enabled for Virtual Private Catalog use.
• B.The target PDB must be registered in both the base catalog and the Virtual Private Catalog.
• C.The target PDB must be registered in a Virtual Private Catalog.
• D.The base catalog owner must give the Virtual Private Catalog access to metadata for one or more PDBs.
• E.The target PDB must be registered in a base catalog.
• F.The base catalog must be used by RMAN when performing point-in-time recovery for the PDB registered in the Virtual Private Catalog.

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Which three are true about Automatic Workload Repository (AWR)? (Choose three.)

• A.By default, AWR snapshots are taken every 60 minutes.
• B.Its collection level is determined by the value of the STATISTICS_LEVEL database parameter.
• C.By default, AWR snapshots are retained for 7 days.
• D.The taking of AWR snapshots can be disabled.
• E.AWR data is stored in the SYSTEM tablespace.

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Which two are true about creating RMAN backups for an Oracle container database? (Choose two.)

• A.The BACKUP DATABASE command will create a pluggable database (PDB) backup when RMAN is connected to a PDB.
• B.The BACKUP PLUGGABLE DATABASE command can be used to back up CDB$ROOT.
• C.The BACKUP DATABASE PLUS ARCHIVELOG command will back up archive logs when RMAN is connected to a PDB.
• D.Tablespaces from different PDBs with identical names must be backed up by connecting RMAN separately to each PDB to back up the tablespaces.
• E.SPFILE backups can be created while connected to an application root PDB.

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Which two are true about the execution of operating system scripts starting from Oracle Database 19c?
(Choose two.)

• A.root.sh can be executed automatically by the Database installer only by using sudo credentials.
• B.The sudo password must be specified in a response file.
• C.The root password cannot be specified in a response file.
• D.orainstRoot.sh can be executed automatically by the Database installer by using sudo or root credentials.
• E.root.sh can be executed automatically by the Database Installer only if it is provided with root credentials.
• F.The sudo password can be specified in a response file.

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