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Oracle 1Z0-083 Exam Syllabus Topics:

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

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Oracle Database Administration II Sample Questions (Q47-Q52):

NEW QUESTION # 47
Which three actions are performed by the Oracle Preinstallation RPM, oracle-database-server-xxxx- preinstall, for Oracle Grid Infrastructure, where xxxx is the Oracle version and release? (Choose three.)

A. creating the grid OS user
B. configuring the OS for Oracle Automatic Storage Management shared storage access
C. creating the oracleOS user
D. creating the OSDBA (dba) group
E. creating thte oraInventory (oinstall) group
F. performing checks to ensure minimum configuration requirements for Oracle Grid Infrastructure are met

Answer: B,D,E

Explanation:
Explanation/Reference: https://docs.oracle.com/cd/E11882_01/install.112/e41961/prelinux.htm#CWLIN2932

NEW QUESTION # 48
Which two are true about flashback features in Oracle Database 19c and later releases? (Choose two.)

A. Flashback logs are automatically purged whenever the value of DB_FLASHBACK_RETENTION_TARGETis changed.
B. Flashback logs are monitored for being older than the retention period defined in DB_FLASHBACK_RETENTION_TARGET and can be deleted by an administrator written event trigger.
C. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGETonly after there is space pressure.
D. Flashback logs are automatically purged when DB_FLASHBACK_RETENTION_TARGETis set lower than the time they have already been retained.
E. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGETbefore there is space pressure.

Answer: D,E

Explanation:
Starting with Oracle Database Release 19c, the management of space in the fast recovery area is simplified.
Oracle Database monitors flashback logs in the fast recovery area and automatically deletes flashback logs that are beyond the retention period.
When the retention target is reduced, flashback logs that are beyond the retention period are deleted immediately.
In scenarios where a sudden workload spike causes a large number of flashback logs to be created, the workload is monitored for a few days before deleting flashback logs that are beyond the retention period.
This avoids the overhead of recreating the flashback logs, if another peak workload occurs soon after.

NEW QUESTION # 49
Which three are true about a whole database backup? (Choose three.)

A. It can consist of either backup sets or image copies.
B. It always includes all data files, the current control file, the server parameter file, and archived redo logs.
C. It can be inconsistent.
D. It is the only possible backup type for a database in NOARCHIVELOG mode.
E. It can be created only by using RMAN.
F. It can be consistent.

Answer: A,C,F

Explanation:
https://docs.oracle.com/cd/B19306_01/backup.102/b14192/bkup004.htm

NEW QUESTION # 50
Which two restrictions apply when the RMAN BACKUP AS COPY command is used to create a backup?

A. Backups can be taken only for data files.
B. Backups can be written only to disk.
C. Backups can be written only if checksums are stored for each block.
D. Backups can be taken only if a fast recovery area is configured.
E. Backups can be written only to media.
F. Binary compression cannot be applied to the backup.

Answer: B,F

NEW QUESTION # 51
Choose two. Examine this configuration: 1. CDB1 is a container database. 2. APP1_ROOT is an application container contained in CDB1. 3. APP1_ROOT$SEED is the application seed contained in APP1_ROOT and synchronized with APP1_ROOT. 4. APP1_PDB1 and APP1_PDB2 are application PDBs contained in APP1_ROOT. 5. APP1_USER_APP is an application installed in APP1_ROOT at version 1.0. 6. USER1 is a common user in APP1_ROOT and all its application PDBs, created when version 1.0 of APP1_USER_APP was installed. You execute these commands: $ sqlplus sys/oracle@localhost:1521/cdb1 as sysdba SQL> ALTER SESSION SET CONTAINER=app1_root; Session altered. SQL> ALTER PLUGGABLE DATABASE APPLICATION app1_user1_app BEGIN UPGRADE '1.0' TO '2.0'; pluggable database altered. SQL> GRANT CREATE SESSION TO USER1; Grant succeeded. SQL> ALTER PLUGGABLE DATABASE APPLICATION app1_user1_app END UPGRADE TO '2.0'; Pluggable database altered SQL> ALTER SESSION SET CONTAINER=app1_pdb1; Session altered. SQL> ALTER PLUGGABLE DATABASE APPLICATION app1_user1_app SYNC; Pluggable database altered. Which two are true?

A. USER1 can connect to CDB1.
B. USER1 is defined in APP1_PDB2. E) USER1 can connect only to APP1_PDB1.
C. USER1 can connect to APP1_ROOT and APP1_PDB1.
D. USER1 can connect to APP1_ROOT, APP1_ROOT$SEED, and APP1_PDB1.
E. USER1 can connect only to APP1_ROOT.

Answer: B,C

NEW QUESTION # 52
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