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Oracle 1Z0-083 Exam Syllabus Topics:

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

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Oracle Database Administration II Sample Questions (Q73-Q78):

NEW QUESTION # 73
Examine this configuration:
* CDB1 is an Oracle Database 12c Release 2 database containing pluggable databases PDB$SEED, PDB1, and PDB2.
* PDB$SEED is open READ ONLY
* PDB1 is open READ WRITE
* PDB2 is MOUNTED.
* ORACLE_HOME is /u01/app/oracle/product/18.1.0/dbhome_1.
You execute these commands before upgrading the database to the current release:

For which databases will fixup scripts be created?

A. CDB1 and PDB$SEED only
B. CDB1, PDB1, and PDB2 only
C. CDB1, PDB$SEED, and PDB1 only
D. PDB$SEED, PDB1, and PDB2 only
E. CDB1, PDB$SEED, PDB1, and PDB2

Answer: C

NEW QUESTION # 74
Which three are true about monitoring waits for sessions and services? (Choose three.)

A. V$SESSION_WAIT _CLASS displays waits broken down by wait class only for waiting sessions.
B. V$SESSION_EVENT displays all waits for all past sessions if the wait has occurred at least once for a session.
C. V$SERVICE_EVENT displays all waits for all services if the wait has occurred at least once for a service.
D. V$SESSION_EVENT displays all waits for all past and existing sessions if the wait has occurred at least once for a session.
E. V$SESSION_WAIT and V$SESSION both contain details of the event on which a non-waiting session last waited.
F. V$SESSION_WAIT and V$SESSION both contain details of the event on which a session is currently waiting.

Answer: A,C,F

NEW QUESTION # 75
How do you configure a CDB for local undo mode?

A. Open the CDB in read-only mode.
In cdb$root, ex cute alter database local undo on, and then change the CDB to read/write mode.
B. Open the CDB instance in upgrade mode.
In each PDB, execute alter database local undo on, create an undo tablespace, and hen restart the CDB instance.
C. Open the CDB instance in restricted mode.
In cdb$root, execute alter database local undo on.
create an undo tablespace in each PDB, and hen restart the CDB instance
D. Open the CDB instance in restricted mode.
In cdb$root, drop the undo tablespace.
Execute alter database local undo on in each PDB and then restart the CDB instance.
E. Open the CDB instance in upgrade mode.
In cdb$root, execute alter database local undo on, and then restart the CDB instance.

Answer: E

Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/admin/administering-a-cdb-with-sql-plus.html#GUID-1AAB032F-D13A-4E06-A062-59E0487C2FC5

NEW QUESTION # 76
Which two are true about server-generated alerts?

A. Stateless alerts are automatically cleared.
B. Stateful alerts must be cleared by a DBA after resolving the problem.
C. Stateful alerts are purged automatically from the alert history.
D. Stateless alerts can be purged manually from the alert history.
E. Stateless alerts can be cleared manually.

Answer: A,B

NEW QUESTION # 77
Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)

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

Answer: C,D,E

Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/19/upgrd/upgrading-oracle- database-upgrade-assistant-dbua.html#GUID-8BDDF859-1638-45AC-824D-78FC8154847C
A). False. Only "...This option recompiles all INVALID PL/SQL modules after the upgrade is complete
B). True. "...The following is a list of examples of DBUA checks, and of actions that DBUA performs on the database: Empty database recycle bin..."
C). True. "... DBUA runs the Pre-Upgrade Information Tool as part of the prerequisite checks it performs before starting the upgrade..."
D). False. Only true for option Partial Backup "...Select among the following RMAN backup options:... Create a New Partial Offline RMAN Backup with User Tablespace. If you select this option, then user tablespaces are placed into read-only mode during the upgrade...."
E). False. These elements are not mentioned in the description of the DBUA process.
F). True. DBUA only continues if the check phase verifies that it can increase the size of tablespaces "... uses the following logic to modify or create new required tablespaces..."

NEW QUESTION # 78
......

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