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

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Oracle Database Administration II Sample Questions (Q159-Q164):

NEW QUESTION # 159
Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)

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

Answer: B,D,E

Explanation:
Explanation/Reference: https://oracle-base.com/articles/12c/upgrading-to-12c

NEW QUESTION # 160
Which two are true about Oracle Database Configuration Assistant (DBCA) templates? (Choose two.)

A. The Data Warehouse template is most suitable when transaction response time is the key criterion.
B. The General Purpose of Transaction Processing templates are most suitable when concurrency and recoverability are key criteria.
C. Oracle DBCA templates can store only logical structure and not database files.
D. Oracle DBCAtemplates can be used to create new databases and duplicate existing databases.
E. New templates can only be created by modifying an existing user-created template.

Answer: B,D

NEW QUESTION # 161
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. Data files with a high value in v$backup_sync_io.discrete_bytes_per_second are a potential performance bottleneck when synchronous I/O is used.
C. If an rman backup validate command takes noticeably less time than an actual backup, then write I/O is a likely bottleneck.
D. Data files with a high value in v$backup_async_io.short_waits are a potential performance bottleneck when asynchronous I/O is used.
E. 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.

Answer: A,D

NEW QUESTION # 162
Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB? (Choose two.)

A. After the change, each existing PDB has to be reopened for the new undo mode to take effect.
B. After the change, only a common user with the required privilege can create an undo tablespace in CDB&ROOT.
C. Any new PDB and existing PDBs are automatically configured to use the default undo tablespace in CDB$ROOT.
D. Undo tablespaces existing in PDBs must be dropped before the change.
E. After the change, any user with the required privilege can create an undo tablespace in the PDBs.
F. After the change, only one undo tablespace can exist in CDB$ROOT.

Answer: A,B

NEW QUESTION # 163
A user complains about poor database performance.
You want to verify if the user's session has waited for certain types of I/O activity.
Which view displays all waits waited on by a session at least once?

A. V$SESSION_WAIT_CLASS
B. V$SESSION
C. V$SESSION_EVENT
D. V$SESSTAT
E. V$SESSION_WAIT

Answer: C

Explanation:
The V$SESSION_EVENT view provides summary of all the events the session has waited for since it started.

NEW QUESTION # 164
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