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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Objectives
Topic 1: Database Duplication and Migration	- Database Duplication 1. Duplicate databases using RMAN 2. Active database duplication - Transport and Migration 1. Data Pump operations 2. Transportable tablespaces
Topic 2: Security in Multitenant Databases	- User and Privilege Management 1. Common users and local users 2. Roles and privileges - Auditing and Security 1. Security policies 2. Unified auditing
Topic 3: Managing CDBs and PDBs	- Multitenant Administration 1. Resource management 2. Manage application containers 3. Open and close PDBs - PDB Lifecycle Operations 1. Snapshot copy PDBs 2. Refreshable PDBs 3. Relocate PDBs
Topic 4: Performance Monitoring and Tuning	- Memory and Resource Optimization 1. Wait event analysis 2. Resource Manager 3. Memory management - SQL Tuning 1. SQL performance analysis 2. SQL execution plans 3. SQL Tuning Advisor - Performance Monitoring 1. Automatic Workload Repository 2. Automatic Database Diagnostic Monitor 3. Performance Hub
Topic 5: Database Upgrades and Patching	- Upgrade Operations 1. Database upgrade planning 2. Post-upgrade validation 3. Upgrade execution - Patch Management 1. Apply Release Updates 2. Rollback procedures 3. Manage Oracle patches
Topic 6: Backup and Recovery	- Restore and Recovery 1. Perform complete recovery 2. Recover CDBs and PDBs 3. Perform incomplete recovery - Flashback Technologies 1. Flashback Database 2. Flashback Table 3. Flashback Drop - RMAN Configuration 1. Configure RMAN settings 2. Manage backup retention policies 3. Backup databases and archived logs
Topic 7: Creating CDBs and Regular PDBs	- Create and manage PDBs 1. Create PDBs from seed databases 2. Clone pluggable databases 3. Plug and unplug PDBs - 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 (Q180-Q185):

NEW QUESTION # 180
Examine this configuration:
1. CDB1 and CDB2 are two container databases.
2. PDB1 is a pluggable database in CDB1.
3. PDB1_C1_SRV is a service for PDB1.
4. CDB1_LINK is a database link in CDB2 referring to PDB1.
5. CDB2 is also an entry in tnsnames.ora pointing to the CDB2 database default service.
You execute these commands successfully:
$ sqlplus sys/oracle_4U@cdb2 as sysdba
SQL> CREATE PLUGGABLE DATABASE PDB1
FROM PDB1@CDB1_LINK
SERVICE_NAME_CONVERT=('PDB1_C1_SRV','PDB1_C2_SRV');
Which two are true? (Choose two.)

A. PDB1 will be created in CDB2 and left in MOUNT state.
B. PDB1_C1_SRV in CDB1 will be renamed PDB1_C2_SRV.
C. PDB1_C2_SRV will be created but not started.
D. PDB1 will be created in CDB2 and automatically opened.
E. PDB1_C2_SRV will be created and started automatically.

Answer: B,D

NEW QUESTION # 181
Which two are true about monitoring waits for sessions and services?

A. v$service_event displays wait counts for every wait event whether waited on or not, for each service.
B. v$session_event displays all waits for all past and existing sessions if the wait has occurred at least once for a session.
C. v$session_wait_class displays waits broken down by wait class only for waiting sessions.
D. v$session_wait and v$session both contain details of the event on which a waiting session is currently waiting.
E. v$session_wait and v$session both contain details of the event on which a non-waiting session last waited.

Answer: A,B

NEW QUESTION # 182
Which three are true in Oracle 19c and later releases? (Choose three.)

A. An ordinary data pump export of a table with encrypted columns will always encrypt the same columns when imported.
B. A transportable data pump import can leave a plugged-in tablespace in read/write mode.
C. Simultaneous data pump jobs can be limited at the pluggable database (PDB) level.
D. A transportable data pump import can leave a plugged-in tablespace in read-only mode.
E. Tablespaces never remain in read/write mode during transportable tablespace operations.
F. Tablespaces always remain in read/write mode during transportable tablespace operations.

Answer: B,C,D

Explanation:
"This method for transporting tablespaces requires that you place the tablespaces to be transported in read-only mode until you complete the transporting process. If this is undesirable, you can use the transportable tablespaces from backup feature" -> BC correct MAX_DATAPUMP_JOBS_PER_PDB determines the maximum number of concurrent Oracle Data Pump jobs per PDB. -> D correct
https://docs.oracle.com/en/database/oracle/oracle-database/19/admin/transporting- data.html#GUID-9304426D-9D40-4F0D-8661-F53B608A652F
https://docs.oracle.com/en/database/oracle/oracle-
database/19/refrn/MAX_DATAPUMP_JOBS_PER_PDB.html#GUID-E911645F-2CA4-447D- AFB7-EBD4753AA09F

NEW QUESTION # 183
Which two are true about the SQL Tuning Advisor?

A. It can recommend semantic changes to SQL statements.
B. It considers all SQL statements being analyzed by the advisor task as a group.
C. It only recommends syntactic changes to SQL statements.
D. It checks each query being analyzed for missing or stale statistics.
E. It prevents performance regressions for SQL statements when changes are made.

Answer: A,C

NEW QUESTION # 184
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. If an RMAN BACKUP VALIDATEcommand takes noticeably less than an actual backup, then write I/O is a likely bottleneck.
B. Setting DBWR_IO_SLAVESto a non zero value can improve backup performance when using asynchronous I/O/
C. Data files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECONDare a potential performance bottleneck when synchronous I/O is used.
D. Setting DBWR_IO_SLAVESto a non zero value can improve backup performance when using synchronous I/O.
E. If an RMAN BACKUP VALIDATEcommand takes roughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.
F. Data files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITSare a potential performance bottleneck when asynchronous I/O is used.
G. If an RMAN BACKUP VALIDATEcommand takes roughly the same time as an actual backup, then read I/O is a likely bottleneck.

Answer: A,D,G

Explanation:
http://docshare04.docshare.tips/files/21043/210437276.pdf

NEW QUESTION # 185
......

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