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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Managing Multitenant Architecture	35%	- CDB and PDB Creation and Configuration 1. Create and configure CDBs and PDBs 2. Use Oracle Resource Manager for multitenant resource management 3. Manage application containers and PDBs - 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. Transport data between multitenant environments 2. Upgrade CDB and PDB environments
Topic 2: Backup and Recovery	30%	- Advanced Recovery Scenarios 1. Recover from critical data file or control file loss 2. Perform point-in-time recovery - Flashback Technologies 1. Use Flashback in multitenant architecture 2. Implement Flashback Database, Table, and Transaction 3. Recover from logical corruptions - 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
Topic 3: 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. Optimize SQL execution plans 2. Use SQL Tuning Advisor and SQL Access Advisor
Topic 4: High Availability and Security	15%	- Patching and Upgrades 1. Use AutoUpgrade utility 2. Apply patches and perform database upgrades - Data Guard Configuration 1. Perform switchover and failover operations 2. Set up physical and standby databases - Database Security 1. Manage encryption and data protection 2. Implement auditing and access controls

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Oracle Database Administration II Sample Questions (Q276-Q281):

NEW QUESTION # 276
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 fails because of the active transaction in the parent container.
B. The insert on user2.dept is uncommitted.
C. The inserts on USER 1 . EMP remain uncommitted when the session connected to pdb2.
D. The inserts on USER1 . EMP were committed when the session connected to pdb2.
E. The inserts on USER1. EMP were committed when the session inserted a row into user2 .dept.
F. The inserts on USER1.EMP were rolled back when the session connected to pdb2.
G. The insert on user2.dept Is a recursive autonomous transaction by the child session and is committed.

Answer: B,G

NEW QUESTION # 277
hoose two. Which two are true about Recovery Manager (RMAN) diagnostic message output?

A. The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file only.
B. MAN error stacks should be read from the top down as that is the order in which errors are generated.
C. Media Management messages for SBT devices are written to an Oracle trace file.
D. RMAN error stacks should be read from the bottom up as that is the order in which errors are generated.
E. The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file and to standard output.

Answer: A,B

NEW QUESTION # 278
Choose two. Which two are true about RMAN persistent configuration settings, administration, and their effects?

A. Backups written to the fast recovery area (FRA) that are obsolete based on the redundancy retention policy can be deleted automatically to free space.
B. A target database's persistent RMAN configuration settings are always stored in the target's control file.
C. A DBA must specify either a redundancy retention policy or a recovery window retention policy. B)A target database's persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog.
D. Backups older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space.

Answer: C

NEW QUESTION # 279
You issued this command:
RMAN> BACKUP RECOVERY FILES;
Which two are true? (Choose two.)

A. All Oracle recovery files not in the current FRA that have not been backed up already, are backed up.
B. All non-Oracle files in the current FRA that have not been backed up already, are backed up.
C. All Oracle recovery files in the current fast recovery area (FRA) are backed up.
D. All Oracle recovery files in the current FRA that have not been backed up already, are backed up.
E. These backups can be written to disk or SBT.

Answer: C,E

Explanation:
https://blog.toadworld.com/rman_-_using_the_flash_recovery_area

NEW QUESTION # 280
While backing up to the Oracle Fast Recovery Area (FRA), you determined the backup is taking too long and suspect a performance bottleneck.
Which three are true about diagnosing and tuning these problems? (Choose three.)

A. Data files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITS are a potential performance bottleneck when asynchronous I/O is used.
B. Setting DBWR_IO_SLAVES to a non zero value can improve backup performance when using asynchronous I/O/
C. Setting DBWR_IO_SLAVES to a non zero value can improve backup performance when using synchronous I/O.
D. If an RMAN BACKUP VALIDATE command takes noticeably less than an actual backup, then write I/O is a likely bottleneck.
E. Data files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECOND are a potential performance bottleneck when synchronous I/O is used.
F. If an RMAN BACKUP VALIDATE command takes roughly the same time as an actual backup, then read I/O is a likely bottleneck.
G. 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: C,D,E

Explanation:
Reference:
https://web.stanford.edu/dept/itss/docs/oracle/10gR2/backup.102/b14191/rcmtunin003.htm

NEW QUESTION # 281
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