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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Backup and Recovery	30%	- Flashback Technologies 1. Recover from logical corruptions 2. Use Flashback in multitenant architecture 3. Implement Flashback Database, Table, and Transaction - Advanced Recovery Scenarios 1. Recover from critical data file or control file loss 2. Perform point-in-time recovery - RMAN Configuration and Operations 1. Restore and recover databases, CDBs, and PDBs 2. Perform full, incremental, and archival backups 3. Configure RMAN settings and channels
Topic 2: Performance Management and Tuning	20%	- SQL Tuning 1. Optimize SQL execution plans 2. Use SQL Tuning Advisor and SQL Access Advisor - Memory and Resource Management 1. Configure SGA and PGA 2. Manage Automatic Memory Management - Database Performance Monitoring 1. Use AWR, ADDM, and ASH for analysis 2. Identify and resolve bottlenecks
Topic 3: High Availability and Security	15%	- Data Guard Configuration 1. Set up physical and standby databases 2. Perform switchover and failover operations - Patching and Upgrades 1. Apply patches and perform database upgrades 2. Use AutoUpgrade utility - Database Security 1. Implement auditing and access controls 2. Manage encryption and data protection
Topic 4: Managing Multitenant Architecture	35%	- PDB Lifecycle and Operations 1. Start, stop, open, and close PDBs 2. Clone, unplug, plug, and relocate PDBs 3. Manage PDB snapshots and refreshable clones - Upgrading and Transporting 1. Upgrade CDB and PDB environments 2. Transport data between multitenant environments - CDB and PDB Creation and Configuration 1. Use Oracle Resource Manager for multitenant resource management 2. Create and configure CDBs and PDBs 3. Manage application containers and PDBs

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Oracle Database Administration II Sample Questions (Q150-Q155):

NEW QUESTION # 150
Which three are true about transporting databases across platforms using Recovery Manager (RMAN) image copies? (Choose three.)

A. Data files can be converted on the source system.
B. Data files can be converted on the destination system.
C. A new DBID is automatically created for the transported database.
D. The password file is automatically converted by RMAN.
E. By default, the transported database will use Oracle Managed Files (OMF)
F. Databases can be transported between systems with different endian formats.

Answer: A,B,E

Explanation:
A: If you do not provide a destination, then the DB_FILE_CREATE_DEST initialization parameter must be set in the target platform. RMAN restores the data files to the location specified by this parameter using new Oracle Managed File (OMF) names.
BC: While creating the cross-platform backup to transport a database, you can convert the database either on the source database or the destination database. The benefit of performing the conversion on the destination database is that the processing overhead of the convert operation is offloaded from the source to the destination database.
D is incorrect. Convert operation will not change DBID explicitly. You will have to use DBNEWID utility to change if you wish to.
E is incorrect. The source platform and destination platform must use the same endian format.

NEW QUESTION # 151
Examine these queries and their output:

After a system crash, an instance restart and an attempted opening of the PDBs result in:

Which two are true?

A. Data file 24 must be recovered while the CDB is opened.
B. Data file 24 can be recovered while PDB2 is opened.
C. Data file 24 must be recovered while PDB2 is closed.
D. Data file 24 can be recovered while CDB$ROOTand PDB$SEED are opened.
E. Data file 24 cannot be recovered while the CDB is opened.

Answer: A,B

NEW QUESTION # 152
In which two situations can you use Database Upgrade Assistant? (Choose two.)

A. when the hardware platform needs to be changed as part of the upgrade
B. when the target and source database are on the same platform
C. when a character set conversion is required during the upgrade
D. when multiple pluggable databases in a container database have to be upgraded in a specific sequence
E. when the operating system (OS) needs to be changed as part of the upgrade

Answer: B,D

Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/upgrd/upgrading-oracle- database-upgrade-assistant-dbua.html#GUID-F929338D-48EE-434F-A5F9-A9E7CD61B17F

NEW QUESTION # 153
Which two are true about RMAN encryption? (Choose two.)

A. RMAN encryption keys are stored in a database keystore.
B. The SET ENCRYPTIONcommand overrides encryption settings specified by the CONFIGURE ENCRYPTIONcommand.
C. RMAN can encrypt the Oracle Database password file.
D. Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available.
E. Password encryption can be persistently configured using the CONFIGURE ENCRYPTION command.

Answer: A,B

Explanation:
- Password encryption cannot be persistently configured. (E is incorrect)
- Although the database depends on other types of files for operation, such as network configuration files, password files, and the contents of the Oracle home, these files cannot be backed up with RMAN (you can't even backup a password file, B incorrect)
- You can also use the SET ENCRYPTION command to perform the following actions:
Override the encryption settings specified by the CONFIGURE ENCRYPTION command. (D is correct)

NEW QUESTION # 154
Which three are true about managing memory components in an Oracle database instance? (Choose three.)

A. Automatically tuned and resized System Global Area components will always revert to their initial sizes after an instance restart.
B. With Automatic Memory Management, the database instance can increase the System Global Area size by reducing the Program Global Area size.
C. With Automatic Shared Memory Management, the database instance can increase the Program Global Area size by reducing the System Global Area size.
D. Automatic Memory Management must be used together with locking the System Global Area into physical memory.
E. With Automatic Shared Memory Management, the database instance can increase the Large Pool size by reducing the Shared Pool size.
F. On Line Transaction Processing systems often use less Program Global Area than Decision Support Systems.

Answer: C,E,F

Explanation:
Explanation/Reference: https://docs.oracle.com/database/121/TGDBA/tune_shared_pool.htm

NEW QUESTION # 155
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