QUESTION: 9

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.)

Increase the size of tape I/O buffers.
Disable FORCE LOGGING for the database.
Increase the size of the database buffer cache.
Enable asynchronous disk I/O.
Increase the level of RMAN multiplexing.

Answer(s): B,C

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QUESTION: 10

For which two requirements can you use the USER_TABLESPACE clause with the CREATE PLUGGABLE DATABASE command? (Choose two.)

to specify a default tablespace in a PDB cloned from another PDB in the same CDB
to exclude all tablespaces except SYSTEM, SYSAUX, and TEMP when plugging in a PDB
to include specific user tablespaces only when relocating a PDB
to specify the list of user tablespaces to include when moving a non-CDB to a PDB
to exclude a temp tablespace when plugging in a PDB
to specify the list of tablespaces to include when creating a PDB from the CDB seed

Answer(s): B,D

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QUESTION: 11

Which three are true about requirements for various FLASHBACK operations? (Choose three.)

FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time.
FLASHBACK drop requires that the RECYCLEBIN parameter be set to ON.
FLASHBACK version query requires that the RECYCLEBIN parameter be set to ON.
FLASHBACK DATA ARCHIVE requires undo to store all versions of all rows of a table being tracked.
FLASHBACK drop requires undo to retrieve all versions of a row that existed two points in time.
FLASHBACK version query requires undo to retrieve all versions of a row that existed between two points in time.

Answer(s): A,B,F

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