Choose two. Which two are true about the automatic execution of operating system scripts when performing silent mode installation starting from Oracle Database 19c?

• A.Silent install always runs operating scripts automatically.
• B.The response file can specify the path of the sudo program.
• C.The installer will prompt for the root or sudo password.
• D.The response file can specify the root or sudo password.
• E.The response file must contain the root or sudo password.

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While backing up to an SBT channel, you determine that the read phase of your compressed Recovery Manager (RMAN) incremental level 0 backup is a bottleneck. FORCE LOGGING is enabled for the database. Which two could improve read performance? (Choose two.)

• A.Increase the size of the database buffer cache.
• B.Increase the level of RMAN multiplexing.
• C.Enable asynchronous disk I/O.
• D.Disable FORCE LOGGING for the database.
• E.Increase the size of tape I/O buffers.

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Which two are true about the Oracle dataabsemethodology? (Choose two.)

• A.SQL statements should always be tuned before tuning any file systems.
• B.The alert log should be used to find the database and instance areas most in need of tuning.
• C.The Oracle Database time model should be used to find the database and instance areas most in need of tuning.
• D.Tuning activities should stop once the user is satisfied with performance.
• E.Tuning activities should stop onceagreed service levels for performance have been met.
• F.The database instance memory should always be tuned before tuning any file systems.

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Choose two. Which two are true about PDB archive files?

• A.They must be created using the DBMS_PDB package.
• B.They contain a PDB manifest file and all the data files in compressed form for a PDB.
• C.They contain a PDB manifest file and all the data files in uncompressed form for a PDB.
• D.They contain all the data files only in uncompressed form for a PDB.
• E.They contain all the data files only in compressed form for a PDB.
• F.DBMS_PDB.CHECK_PLUG_COMPATIBILITY can be run against a PDB archive.

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Which three are true about a whole database backup? (Choose three.)

• A.It can be created only by using RMAN.
• B.It can be inconsistent.
• C.It always includes all data files, the current control file, the server parameter file, and archived redo logs.
• D.It is the only possible backup type for a database in NOARCHIVELOG mode.
• E.It can consist of either backup sets or image copies.
• F.It can be consistent.

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