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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Objectives
Performance Management	- SQL performance tuning - Automatic Workload Repository (AWR) and diagnostics
Database Architecture and Administration	- Oracle Database architecture components - Multitenant container database (CDB/PDB) concepts
Security Management	- Database auditing and encryption - User management and privileges
Database Backup and Recovery	- Database recovery techniques - RMAN configuration and backup strategies
Storage and Space Management	- Tablespaces and datafiles - Segment management

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Oracle Database Administration II Sample Questions (Q220-Q225):

NEW QUESTION # 220
Which two are true about RMAN Multisection backups when a very large data file is divided into four sections?
(Choose two.)

A. The four sections can be created serially.
B. The four sections can be created in parallel.
C. The four sections must be image copies.
D. The four sections must be contained in backup sets.
E. Each of the file sections must be processed serially.

Answer: B,D

NEW QUESTION # 221
Which two are true about flashback features in Oracle Database 19c and later releases? (Choose two.)

A. Flashback logs are automatically purged when DB_FLASHBACK_RETENTION_TARGETis set lower than the time they have already been retained.
B. Flashback logs are automatically purged whenever the value of DB_FLASHBACK_RETENTION_TARGETis changed.
C. 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.
D. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGETonly after there is space pressure.
E. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGETbefore there is space pressure.

Answer: A,E

Explanation:
Starting with Oracle Database Release 19c, the management of space in the fast recovery area is simplified.
Oracle Database monitors flashback logs in the fast recovery area and automatically deletes flashback logs that are beyond the retention period.
When the retention target is reduced, flashback logs that are beyond the retention period are deleted immediately.
In scenarios where a sudden workload spike causes a large number of flashback logs to be created, the workload is monitored for a few days before deleting flashback logs that are beyond the retention period.
This avoids the overhead of recreating the flashback logs, if another peak workload occurs soon after.

NEW QUESTION # 222
Which two are true about Lockdown profiles in a container database (CDB) and its pluggable databases (PDBs)?

A. A PDB Lockdown profile can be created in a regular PDB.
B. A PDB Lockdown profile can be created in CDB$ROOT .
C. A Lockdown profile created from a base Lockdown profile is always automatically modified if the profile on which it is based is modified.
D. A PDB Lockdown profile can be created in an application root.
E. A Lockdown profile created from a base Lockdown profile is never automatically modified if the profile on which it is based is modified.

Answer: B,D

NEW QUESTION # 223
Which two are true about automatic block repair?

A. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on that physical standby database.
B. Real-Time Query must be enabled on a primary database for automatic block repair to be done on any of its physical standby databases.
C. Automatic block repair can repair blocks with no standby database if db_block_checking = TRUE.
D. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on its primary database.
E. It is not possible for media corrupt blocks.

Answer: D,E

NEW QUESTION # 224
Which two are true about unplugging an application container from a container database and plugging it into a different container database?

A. Plugging the application root into a different CDB plugs In all its application PDBs.
B. The application root of an application container should be plugged Into the other CDB before Its application PDBs are plugged in.
C. It requires local undo mode in both container databases.
D. Unplugging the application root from a CDB unplugs all its application PDBs.
E. It requires only local undo mode in the database where the application container will be unplugged.
F. Application PDBs In the application container must be unplugged before the application root Is unplugged.

Answer: D,F

NEW QUESTION # 225
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