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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Objectives
Backup and Recovery	- Restore and Recovery 1. Recover CDBs and PDBs 2. Perform complete recovery 3. Perform incomplete recovery - Flashback Technologies 1. Flashback Table 2. Flashback Database 3. Flashback Drop - RMAN Configuration 1. Manage backup retention policies 2. Configure RMAN settings 3. Backup databases and archived logs
Security in Multitenant Databases	- User and Privilege Management 1. Roles and privileges 2. Common users and local users - Auditing and Security 1. Security policies 2. Unified auditing
Database Upgrades and Patching	- Upgrade Operations 1. Database upgrade planning 2. Upgrade execution 3. Post-upgrade validation - Patch Management 1. Manage Oracle patches 2. Apply Release Updates 3. Rollback procedures
Creating CDBs and Regular PDBs	- Create and manage PDBs 1. Plug and unplug PDBs 2. Clone pluggable databases 3. Create PDBs from seed databases - Configure and create a CDB 1. Create container databases 2. Configure initialization parameters 3. Manage CDB architecture
Database Duplication and Migration	- Database Duplication 1. Duplicate databases using RMAN 2. Active database duplication - Transport and Migration 1. Transportable tablespaces 2. Data Pump operations
Managing CDBs and PDBs	- Multitenant Administration 1. Manage application containers 2. Resource management 3. Open and close PDBs - PDB Lifecycle Operations 1. Refreshable PDBs 2. Relocate PDBs 3. Snapshot copy PDBs
Performance Monitoring and Tuning	- Performance Monitoring 1. Performance Hub 2. Automatic Database Diagnostic Monitor 3. Automatic Workload Repository - SQL Tuning 1. SQL Tuning Advisor 2. SQL execution plans 3. SQL performance analysis - Memory and Resource Optimization 1. Memory management 2. Resource Manager 3. Wait event analysis

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Oracle Database Administration II Sample Questions (Q179-Q184):

NEW QUESTION # 179
Which two statements are true about indexes and their administration in an Oracle database?

A. A descending index is a type of bitmapped index.
B. A non-unique index can be converted to a unique index using a Data Definition Language (DDL) command.
C. An index can be scanned to satisfy a query without the indexed table being accessed.
D. An invisible index is maintained when a Data Manipulation Language (DML) command is per- formed on its underlying table.
E. An index is always created by scanning the key columns from the underlying table.

Answer: C,D

NEW QUESTION # 180
Which two are true about Oracle Database Configuration Assistant (DBCA)? (Choose two.)

A. It can be used to convert a non-container database to a container database.
B. It can be used to create container databases and non-container databases.
C. It can be used to change the character set of an existing database.
D. It can only be launched from the command line interface.
E. It can be launched from both the command line and the Universal Installer (OUI) interfaces.

Answer: B,E

Explanation:
An interesting aside is that Oracle have specified that, in the future, non-CDBs will not be possible. But, this option is still available in 19c - which is what this exam is based upon. From Oracle 20c onwards, it is not meant to be possible to create non-CDBs with the DBCA. (not tested, only going from documentation)

NEW QUESTION # 181
Oracle Managed Files (OMF) is enabled in a CDB and this command is successfully executed:

Which three are true? (Choose three.)

A. Application PDBs that are subsequently created in the APP1 application container will be cloned from PDB$SEED.
B. An application root PDB is created for APP1.
C. Application PDBs that are subsequently created in the APP1 application container will be cloned from APP1$SEED.
D. An application seed PDB is created for APP1.
E. A default service is created for the application root APP1.
F. APP1 can never be unplugged.

Answer: A,C,D

NEW QUESTION # 182
Which three RMAN persistent settings can be set explicitly?

A. redo log backup duplexing
B. control file auto backup formats
C. image copy duplexing
D. archive log backup duplexing
E. SPFILE backup duplexing
F. archive log deletion policy

Answer: B,D,F

NEW QUESTION # 183
You have configured RMAN SBT channels to write backups to media.
You then take an RMAN backup by using this command:

Which three are true? (Choose three.)

A. The restore point is a label for the system change number (SCN) before the archival backup was taken.
B. The control file is included in the self-contained archival backup.
C. The SPFILE is included in the self-contaied archival backup.
D. All archive logs created after this backup are kept for two years.
E. The data file backups in the self-contained archive backup are not considered obsolete for two years regardless of the retention policy.
F. The restore point is a label for the system change number (SCN) that will be saved two years after the archival backup was taken.

Answer: B,C,E

Explanation:
The restore point is a label for the SCN to which this archival backup can be restored and recovered , and is captured just after the data file backups complete. (F is wrong) Normal restore points are retained in the database for at least the number of days specified for the CONTROL_FILE_RECORD_KEEP_TIME initialization parameter (A incorrect)
- The control file autobackup that RMAN automatically makes when you use the backup .. keep command has a copy of the restore point (and also the spfile D and E are correct) KEEP - Specifies the backup as an archival backup, which is a self-contained backup that is exempt from the configured retention policy.
UNTIL TIME - Specifies the time until which the backup or copy must be kept (B correct)
https://docs.oracle.com/cd/E18283_01/server.112/e17118/statements_6011.htm
http://devel.hotpilot.cz/ora11gR2u2-full/backup.112/e10643/rcmsubcl011.htm An example:
http://www.online-database.eu/recovery-manager-rman/143-rman-backupsets-with-restore-point

NEW QUESTION # 184
......

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