Which two are true about OS groups and users for Oracle Grid Infrastructure and the Oracle Relational Database Management System (RDBMS)?

• A.By default, members of the OSASM group can access Automatic Storage Management and RDBMS instances.
• B.The Oracle Grid Infrastructure owner must have OSOPER, OSBACKUPDBA, and OSKMDBA as secondary groups.
• C.The primary group for the Oracle Grid Infrastructure and Oracle Database owners must be the Oracle Inventory group.
• D.The same OSDBA group must be used for Automatic Storage Management and the Oracle Database.
• E.The Oracle Grid Infrastructure Installation must be owned by the grid user.
• F.The Oracle Grid Infrastructure owner owns Oracle Restart and Oracle Automatic Storage Management binaries.

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Which three are true about an application seed pluggable database (PDB)? (Choose three.)

• A.It is automatically synchronized with its application root PDB when an application is upgraded. B)It cannot be added to an application container after the application container has already been created.
• B.It cannot be dropped from its application container.
• C.It is automatically synchronized with its application root PDB when an application is installed.
• D.It is not required in an application container.
• E.A new application PDB created by cloning an application seed PDB can have an old version of the application installed after cloning completes.
• F.A new application PDB created by cloning an application seed PDB can have an up-to-date version of the application installed after cloning completes.

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You notice that the performance of your production 24/7 Oracle 12c database has significantly degraded. Sometimes you are not able to connect to the instance because it hangs. You do not want to restart the database instance. How can you detect the cause of the degraded performance?

• A.Run ADDM in diagnostic mode.
• B.Run Automatic Database Diagnostic Monitor (ADDM) to fetch information from the latest Automatic Workload Repository (AWR) snapshots.
• C.Use Active Session History (ASH) data and hang analysis in regular performance monitoring,
• D.Use emergency monitoring to fetch data directly from SGA for analysis.
• E.Enable Memory Access Mode, which reads performance data from SGA.

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Oracle Managed Files (OMF) is enabled in a CDB and this command is successfully executed:

Which three are true? (Choose three.)

• A.An application root PDB is created for APP1.
• B.An application seed PDB is created for APP1.
• C.Application PDBs that are subsequently created in the APP1 application container will be cloned from PDB$SEED.
• D.Application PDBs that are subsequently created in the APP1 application container will be cloned from APP1$SEED.
• E.APP1 can never be unplugged.
• F.A default service is created for the application root APP1.

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In which two situations can you use Database Upgrade Assistant? (Choose two.)

• A.when the hardware platform needs to be changed as part of the upgrade
• B.when a character set conversion is required during the upgrade
• C.when the operating system (OS) needs to be changed as part of the upgrade
• D.when multiple pluggable databases in a container database have to be upgraded in a specific sequence
• E.when the target and source database are on the same platform

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