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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Weight	Objectives
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 - Upgrading and Transporting 1. Upgrade CDB and PDB environments 2. Transport data between multitenant environments - 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
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. Use AutoUpgrade utility 2. Apply patches and perform database upgrades
Backup and Recovery	30%	- Flashback Technologies 1. Implement Flashback Database, Table, and Transaction 2. Recover from logical corruptions 3. Use Flashback in multitenant architecture - RMAN Configuration and Operations 1. Restore and recover databases, CDBs, and PDBs 2. Perform full, incremental, and archival backups 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
Performance Management and Tuning	20%	- 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 - Database Performance Monitoring 1. Identify and resolve bottlenecks 2. Use AWR, ADDM, and ASH for analysis

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Oracle Database Administration II Sample Questions (Q49-Q54):

NEW QUESTION # 49
Which two are true about common objects? (Choose two.)

A. They can be only metadata-linked in an application container.
B. They can be extended data-linked in CDB$ROOT.
C. They can be created only in CDB$ROOT.
D. They can exist in user-defined schemas only in application containers.
E. They can exist in CDB$ROOT and an application root.
F. They can be created only in an application root.

Answer: E,F

NEW QUESTION # 50
Examine this output:

Which two are true?

A. Any PDB not specified in the plan will be able to use a maximum of 16.5% of the available system resources.
B. PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand.
C. Any PDB not specified in the plan will be unable to execute statements in parallel.
D. PDB1 is always limited to 40% of the available system resources regardless of demand.
E. PDB3 can use all available parallel execution processes at times.
F. PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand.

Answer: C

NEW QUESTION # 51
Which two are true about poorly performing SQL statements and their tuning in Oracle database instances? (Choose two.)

A. Poorly performing SQL statements can be tuned automatically by the Oracle server.
B. The solution that best optimizes one SQL statement can degrade the performance of others.
C. SQL statements doing only logical reads never require tuning because they do no physical I/O.
D. SQL statements performing many physical I/Os can always have their performance improved by creating indexes.
E. SQL statements doing joins always do more physical I/O than single table queries.

Answer: A,B

Explanation:
https://docs.oracle.com/cd/B28359_01/server.111/b28274/sql_tune.htm#PFGRF028

NEW QUESTION # 52
While backing up to the Oracle Fast Recovery Area (FRA), you determined the backup istaking too long and suspect a performance bottleneck. Which three are true about diagnosing and tuning these problems? (Choose three.)

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

Answer: B,F,G

NEW QUESTION # 53
For which two requirements can you use the user_tablespaces clause with the create pluggable database command?

A. to include specific user tablespaces only when relocating a PDB
B. to specify a default tablespace in a PDB cloned from another PDB in the same CDB
C. to exclude all tablespaces except system, sysaux, and temp when plugging in a PDB
D. to specify the list of user tablespaces to include when moving a non-CDB to a PDB
E. to exclude a temp tablespace when plugging in a PDB
F. to specify the list of tablespaces to include when creating a PDB from the CDB seed

Answer: C,E

NEW QUESTION # 54
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