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Oracle 1Z0-083 Exam Syllabus Topics:

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

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Oracle Database Administration II Sample Questions (Q141-Q146):

NEW QUESTION # 141
Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)

A. It sets all user tablespaces to "read-only" before starting the upgrade.
B. It recompiles all stored PL/SQL code by using utlrp.sql.
C. It performs prerequisite checks to verify if the Oracle database is ready for upgrade.
D. It increases tablespace size, if required, to meet upgrade requirements.
E. It removes the AUDSYS schema and the AUDIT_ADMIN and AUDIT_VIEWER roles
F. It empties the RECYCLE BIN.

Answer: C,D,F

Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/upgrd/upgrading-oracle-database-upgrade-assistant-dbua.html#GUID-307DACD9-ECEE-4079-B767-B22620B99900
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/upgrd/upgrading-oracle-database-upgrade-assistant-dbua.html#GUID-8BDDF859-1638-45AC-824D-78FC8154847C

NEW QUESTION # 142
Which two are true about the Automatic Database Diasnostic Monitor (ADDM)? (Choose two.)

A. It runs automatically after each AWR snapshot.
B. It analyzes a period of time corresponding to the last day of activity.
C. Results are written to the alert log.
D. A DBA can run it manually.
E. It analyzes a period of time corresponding to the 12 hours of activity.

Answer: A,C

NEW QUESTION # 143
You are managing this configuration:
1. CDB1 is a container database.
2. BDB1 and PDB2 are two pluggable databases in CDB1.
3. user1 .EMP Is a table In PDBI and user2.DEPT is a table in PDB2.

Which two are true?

A. The insert on user2.dept Is a recursive autonomous transaction by the child session and is committed.
B. The inserts on USER 1 . EMP remain uncommitted when the session connected to pdb2.
C. The insert on user2.dept is uncommitted.
D. The inserts on USER1 . EMP were committed when the session connected to pdb2.
E. The insert on user2.dept fails because of the active transaction in the parent container.
F. The inserts on USER1.EMP were rolled back when the session connected to pdb2.
G. The inserts on USER1. EMP were committed when the session inserted a row into user2 .dept.

Answer: A,C

NEW QUESTION # 144
Which three are true about transporting databases across platforms using Recovery Manager (RMAN) image copies? (Choose three.)

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

Answer: A,B,F

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 # 145
When backing up to the Oracle Fast Recovery Area (FRA), you determine that the backup takes too long and suspect a performance bottleneck.
Which two are true about diagnosing and tuning these problems?

A. If an rman backup validate command takes roughly the same time as an actual backup, then read I/O is a likely bottleneck.
B. If an rman backup validate command takes noticeably less time than an actual backup, then write I/O is a likely bottleneck.
C. If an rman backup validate command takes roughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.
D. Data files with a high value in v$backup_sync_io.discrete_bytes_per_second are a potential performance bottleneck when synchronous I/O is used.
E. Data files with a high value in v$backup_async_io.short_waits are a potential performance bottleneck when asynchronous I/O is used.

Answer: A,E

NEW QUESTION # 146
......

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