100% Pass Quiz 2026 Professional Oracle 1Z0-083: Oracle Database Administration II Valid Test Duration

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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Objectives
Topic 1: 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
Topic 2: Performance Monitoring and Tuning	- SQL Tuning 1. SQL performance analysis 2. SQL execution plans 3. SQL Tuning Advisor - Memory and Resource Optimization 1. Wait event analysis 2. Resource Manager 3. Memory management - Performance Monitoring 1. Automatic Workload Repository 2. Automatic Database Diagnostic Monitor 3. Performance Hub
Topic 3: Database Upgrades and Patching	- Upgrade Operations 1. Database upgrade planning 2. Post-upgrade validation 3. Upgrade execution - Patch Management 1. Manage Oracle patches 2. Apply Release Updates 3. Rollback procedures
Topic 4: Database Duplication and Migration	- Database Duplication 1. Active database duplication 2. Duplicate databases using RMAN - Transport and Migration 1. Data Pump operations 2. Transportable tablespaces
Topic 5: Backup and Recovery	- Restore and Recovery 1. Perform complete recovery 2. Perform incomplete recovery 3. Recover CDBs and PDBs - Flashback Technologies 1. Flashback Drop 2. Flashback Database 3. Flashback Table - RMAN Configuration 1. Manage backup retention policies 2. Configure RMAN settings 3. Backup databases and archived logs
Topic 6: Managing CDBs and PDBs	- PDB Lifecycle Operations 1. Refreshable PDBs 2. Snapshot copy PDBs 3. Relocate PDBs - Multitenant Administration 1. Manage application containers 2. Resource management 3. Open and close PDBs
Topic 7: Creating CDBs and Regular PDBs	- Configure and create a CDB 1. Configure initialization parameters 2. Manage CDB architecture 3. Create container databases - Create and manage PDBs 1. Clone pluggable databases 2. Plug and unplug PDBs 3. Create PDBs from seed databases

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Oracle Database Administration II Sample Questions (Q118-Q123):

NEW QUESTION # 118
Which three are true about unified auditing in full mode?

A. The unified audit trail is written to a read-only external file.
B. The unified audit trail is written to a read-only table.
C. Audit records are created for COMMIT, ROLLBACK, and SAVEPOINT statements.
D. Audit records are created for non-sys users.
E. Audit records are created for SYS.

Answer: B,D,E

NEW QUESTION # 119
Which two are true about gathering optimizer statistics? (Choose two.)

A. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$ROOT.
B. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open PDBs except PDB$SEED.
C. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB opened in read/write mode gathers object statistics for that PDB.
D. System statistics can be gathered only while connected to CDB$ROOT.
E. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open pluggable databases (PDBs)

Answer: C,E

Explanation:
Explanation
https://mikedietrichde.com/2016/10/21/gather-fixed-objects-stats-in-pdbs-as-well/#:~:text=Yes%2C%20you'll%2

NEW QUESTION # 120
Which two are true about the Oracle Optimizer?

A. It always generates an index access operation when a statement filters on an indexed column with an equality operator.
B. It can automatically re-optimize execution plans that were detected to be sub-optimal when executing.
C. It can re-write a statement internally in order to generate a more optimal plan.
D. It requires system statistics when generating SQL execution plans.
E. It ignores stale object statistics in the Data Dictionary.

Answer: B,C

NEW QUESTION # 121
Which two are true about the character sets used in an Oracle database? (Choose two.)

A. Single-byte character sets provide better performance than multibyte character sets.
B. Unicode enables information from any language to be stored using a single character set.
C. Single-byte character sets always use 8-bit encoding schemes.
D. Single-byte character sets always use 7-bit encoding schemes.
E. Unicode is the only supported character set for Oracle databases created using Database Configuration Assistant (DBCA).
F. Multibyte character sets allow more efficient space utilization than single byte character sets.

Answer: A,B

NEW QUESTION # 122
Which three are true about Database Point-in-Time Recovery? (Choose three.)

A. The Database must be in ARCHIVELOG mode.
B. Database Point-in-Time Recovery is performed by the Managed Recovery Process (MRP)
C. The database must have FLASHBACK DATABASE ON to perform Database Point-in-Time Recovery.
D. The target point for the recovery must be specified as a stime or System Change Number (SCN).
E. The database must be open RESETLOGS after Database Point-in-Time Recovery.
F. The database must be in MOUNT state when performing Database Point-in-Time Recovery.

Answer: A,E,F

Explanation:
https://docs.oracle.com/cd/B19306_01/backup.102/b14192/flashptr006.htm#:~:text=Database%20point%2Din%2Dtime%20recovery%20(DBPITR)%20restores%20the,forward%20to%20the%20target%20time.

NEW QUESTION # 123
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