Free Access Oracle.1Z1-083.v2022-01-24.q140 Practice Test (Page 27)

Question 126

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

A.FLASHBACK drop requires undo to retrieve all versions of a row that existed between two points in time.

B.FLASHBACK version query requires that the RECYCLEBIN parameter be set to ON.

C.FLASHBACK drop requires that the RECYCLEBIN parameter be set to ON.

D.FLASHBACK version query requires undo to retrieve all versions of a row that existed between two points in time.

E.FLASHBACK DATA ARCHIVE requires undo to store all versions of all rows of a table being tracked.

F.FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time.

Question 127

Which two are true about the Oracle database tuning methodology?

A.The Oracle Database time model should be used to find the database and instance areas most in need of tuning.

B.Tuning activities should stop once the user is satisfied with performance.

C.Tuning activities should stop once agreed service levels for performance have been met.

D.The alert log should be used to find the database and instance areas most in need of tuning.

E.The database instance memory should always be tuned before tuning any file systems.

F.SQL statements should always be tuned before tuning any file systems.

Question 128

Examine the command for creating pluggable database PDB2 in container database CDB2.

Select three options, any one of which is required for it to execute successfully. (Choose three.)

A.Add the FILE_NAME_CONVERT clause to the statement and enable Oracle Managed Files (OMF)

B.Add only the CREATE_FILE_DEST clause to the statement.

C.Add the FILE_NAME_CONVERT clause to the statement and set the PDB_FILE_NAME_CONVERT parameter.

D.Set the PDB_FILE_NAME_CONVERT parameter and enable OMF.

E.Set only the PDB_FILE_NAME_CONVERT parameter.

F.Enable only OMF.

Question 129

Examine this configuration:
CDB1 is a container database.
COMMON_USER_PREFIX is C##.
PDB1 is a pluggable database contained in CDB1.
APP1_ROOT is an application container contained in CDB1.
APP1_PDB1 is an application PDB contained in APP1_ROOT.
You execute these commands successfully:

Which two are true? (Choose two.)

A.APP1_USER1 can be created in CDB1.

B.APP1_USER1 can have different privileges in each Application PDB contained in APP1_ROOT.

C.P1_USER1 can be created in CDB1.

D.C##_USER1 will have the same privileges and roles granted in all PDBs in CDB1.

E.APP1_USER1 can be created in PDB1.

F.C##_APP_USER1 can be created in CDB1.

Question 130

Which two are true about flashback features in Oracle Database 19c and later releases?

A.Flashback logs are automatically purged when db_flashback_retention_target is set lower than the time they have already been retained.

B.Flashback logs are monitored for being older than the retention period defined in db_flashback_retention_target and can be deleted by an administrator written event trigger.

C.Flashback logs are monitored and proactively deleted when beyond the retention period definedin db_flashback_retention_target before there is space pressure.

D.Flashback logs are automatically purged whenever the value Of DB_FLASHBACK_RETENTION_TARGET is changed.

E.Flashback logs are monitored and proactively deleted when beyond the retention period definedin DB_flashback_retention_TARGET only after there is space pressure

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Question 126

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Question 128

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