Which two are true about the character sets used in an Oracle database? (Choose two.)

• A.Single-byte character sets provide better performance than multibyte character sets.
• B.Unicode enables information from any language to be stored using a single character set.
• C.Unicode is the only supported character set for Oracle databases created using Database Configuration Assistant (DBCA).
• D.Single-byte character sets always use 7-bit encoding schemes.
• E.Multibyte character sets allow more efficient space utilization than single byte character sets.
• F.Single-byte character sets always use 8-bit encoding schemes.

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choose two Which two are benefits of unified auditing in full mode?

• A.Pre 12c audit data is written to the traditional locations and new 12c audit data is written to the unified location.
• B.All audit data is written to both the traditional locations and to the unified location.
• C.The audit trail is read-only.
• D.The audit trail is in a single format.
• E.The audit trail uses less space.

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Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)

• A.It recompiles all stored PL/SQL code by using utlrp.sql.
• B.It empties the RECYCLE BIN.
• C.It performs prerequisite checks to verify if the Oracle database is ready for upgrade.
• D.It sets all user tablespaces to "read-only" before starting the upgrade.
• E.It removes the AUDSYS schema and the AUDIT_ADMIN and AUDIT_VIEWER roles
• F.It increases tablespace size, if required, to meet upgrade requirements.

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Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)

• A.It recompiles all stored PL/SQLcode by using utlrp.sql.
• B.It empties the RECYCLE BIN.
• C.It performs prerequisite checks to verify if the Oracle database is ready for upgrade.
• D.It sets all user tablespaces to "read-only" before starting the upgrade.
• E.It removes the AUDSYS schema and the AUDIT_ADMINand AUDIT_VIEWERroles
• F.It increases tablespace size, if required, to meet upgrade requirements.

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Choose two. Your database is in ARCHIVELOG mode and you plan to use Flashback Database. Which two features or parameters manage space availability in the fast recovery area?

• A.the archived log deletion policy
• B.the DB_CREATE_ONLINE_LOG_DEST_n parameter setting
• C.using guaranteed UNDO retention
• D.the DB_RECOVERY_FILE_DEST parameter setting
• E.the backup optimization policy
• F.the backup retention policy

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