Free Access Oracle.1Z0-083.v2024-08-30.q181 Practice Test (Page 33)

Question 156

Choose two. In performance management, which two factors might reduce the ability of an application to scale to a larger number of users?

A.the number of tablespaces containing tables updated by a transaction

B.poorly trained users who do not commit transactions

C.the number of data files containing extents belonging to tables updated by a transaction

D.poorly written SQL

E.issuing multiple savepoints during a transaction

Question 157

Which three capabilities require the use of the RMAN recovery catalog? (Choose three.)

A.using RMAN stored scripts

B.using the REPORT SCHEMA command to list a database's data files and tablespaces at times in the past

C.using the KEEP FOREVER clause with the BACKUP command

D.creating encrypted backups

E.using the REPORT SCHEMA command to list a database's current data files and tablespaces

F.creating customized reports about a single database's backups

Question 158

Choose three. Which are the three steps in the SQL tuning process for Oracle Database environments?

A.Tune individual SQL statements using the SQL Tuning Advisor.

B.Identify poorly tuned SQL statements using the SQL Tuning Advisor.

C.Test tuned SQL statements one at a time for all statements in the application.

D.Tune SQL statements as a group using the SQL Tuning and SQL Access Advisors.

E.Test the application as a whole using tuned SQL statements.

F.Identify poorly tuned SQL statements using Automatic Database Diagnostic Monitor.

Question 159

Which two are true about RMAN encryption? (Choose two.)

A.Password encryption can be persistently configured using the CONFIGURE ENCRYPTION command.

B.Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available.

C.The SET ENCRYPTION command overrides encryption settings specified by the CONFIGURE ENCRYPTION command.

D.RMAN encryption keys are stored in a database keystore.

E.RMAN can encrypt the Oracle Database password file.

Question 160

A container database (CDB) contains two pluggable databases PDB1 and PDB2.
The local_undo_enabled database property is set to false in the CDB.
Data file 24 of PDB2 was deleted and you need to restore and recover it.
The only RMAN backup that exists was created with the backup database command while connected to CDB$ROOT.
Which three are true?

A.Data file 24 can be restored only while connected to CDB$ROOT.

B.Data file 24 can be recovered only while connected to PDB2.

C.Data file 24 can be restored and recovered while connected to CDB$ROOT.

D.Data file 24 can be restored only while connected to PDB2.

E.Data file 24 can be recovered while connected to PDB2.

F.Data file 24 can be recovered while connected to CDB$ROOT.

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Question 156

Question 157

Question 158

Question 159

Question 160

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