[Feb 15, 2026] 100% Real & Accurate 1Z0-083 Questions with Free and Fast Updates
Self-Study Guide for Becoming an Oracle Database Administration II Expert
Oracle 1Z1-083 exam is a certification test designed to measure the knowledge and skills of IT professionals who work with Oracle databases. 1Z0-083 exam is intended for database administrators who have already passed the 1Z1-082 exam and want to further validate their skills in Oracle database administration. Passing 1Z0-083 exam demonstrates a higher level of proficiency in database management, which can lead to better job opportunities and higher salaries.
NEW QUESTION # 11
Choose three. Which are three of the steps taken by Database Configuration Assistant (DBCA) to clone a remote pluggable database (PDB) starting from Oracle 19c?
- A. opening the cloned PDB
- B. creating a database link from CDB$ROOT in the local database to CDB$ROOT in the remote system that is to be cloned
- C. creating a database link from CDB$ROOT in the remote database to the PDB in the local database
- D. creating a database link from CDB$ROOT in the local database to the PDB in the remote system that is to be cloned
- E. creating a new empty PDB in the local database from PDB$SEED
- F. automatically dropping the database link to the remote database if it already exists
- G. creating a database link from CDB$ROOT in the remote database to be cloned to CDB$ROOT in the local database
Answer: B,C,F
NEW QUESTION # 12
Which three are true about using Database Resource Manager in an Oracle multitenant environment?
(Choose three.)
- A. A CDB-level resource plan is mandatory when using PDB-level resource plans.
- B. PDB-level resource plans can limit uncommitted UNDO per consumer group.
- C. A CDB-level resource plan can limit PDB CPU utilization.
- D. A PDB-level resource plan can limit session PGA memory.
- E. A CDB-level resource plan can limit PDB UNDO use.
- F. A CDB-level resource plan can limit session CPU utilization.
Answer: A,E,F
NEW QUESTION # 13
Which two are true in Oracle 19c and later releases?
- A. Unified Auditing can be configured to audit only events that are issued indirectly by all users
- B. Unified Auditing can be configured to audit only events that are issued directly by an audited user.
- C. All the Oracle-supplied accounts are Schema Only accounts.
- D. Schema Only accounts can be granted administrator privileges.
- E. If the password file location changes, then the instance must be restarted.
Answer: B,D
NEW QUESTION # 14
Which three statements are true about Flashback Data Archive?
- A. A table enabled for Flashback Data Archive cannot be dropped unless Flashback Data Archive is disabled or disassociated first.
- B. Flashback Data Archive prevents flashback queries from getting a snapshot-too-old error.
- C. To use Flashback Data Archive, users must have unlimited quota on the Flashback Data Archive tablespace.
- D. To enable Flashback Data Archive for a table, it is mandatory to have a default Flashback Data Archive for a database
- E. While enabling Flashback Data Archive for a table, if no name is provided for Flashback Data Archive, it is enabled using the default Flashback Data Archive.
Answer: A,B,E
NEW QUESTION # 15
Examine this configuration:
1. CDB1 is a container database.
2. PDB1 and PDB2 are pluggable databases in CDB1.
You execute these commands successfully:
Which two are true?
- A. Redo logs are opened.
- B. PDB1 and PDB2 are in read only state.
- C. PDB$SEED is in read only state.
- D. PDB1 and PDB2 are in mount state.
- E. CDB$ROOT is in mount state.
Answer: A,B
NEW QUESTION # 16
Which two are true about data movement between a non-CDB and a PDB using Data Pump? (Choose two.)
- A. Moving data from a non-CDB to a PDB is only possible by using conventional export and import.
- B. Oracle attempts to convert conventional database users to local users when moving schemas from a non-CDB to a PDB.
- C. Tablespaces are automatically created as need while importing full exports in either a non-CDB or a PDB.
- D. A new PDB is automatically created when importing a non-CDB into a CDB.
- E. Moving data from a PDB to a non-CDB is only possible by using transportable tablespace export and import.
- F. Oracle attempts to convert common users to conventional users when moving schemas from a PDB to a non-CDB.
Answer: B,F
NEW QUESTION # 17
Which two are true about Rapid Home Provisioning (RHP), which has been available since Orcale 18c? (Choose two.)
- A. It can be used to provision middleware.
- B. It cannot be used to upgrade Oracle Database homes.
- C. It can be used to provision applications.
- D. It is an Oracle Database service
- E. It can be used to patch Grid Infrastructure homes containing Oracle Restart.
Answer: A,E
Explanation:
Reference:
https://www.oracle.com/assets/rapid-home-provisioning-2405191.pdf
NEW QUESTION # 18
HR_ROOT is an application container with the HR_APP application installed.
No application PDBs and no application seed have yet been created in HR_ROOT.
An application PDB, PDB1, must be created so that the HR_APP application's common objects are accessible to it.
Which two methods can be used? (Choose two.)
- A. Create an application seed, and install HR_APP in it.
- B. Create the PBD1 application PDB and synchronize it with PDB$SEED.
- C. Create the PBD1 application PDB and synchronize it with HR_ROOT.
- D. Create the PDB1 application PDB and install HR_APP in it.
- E. Create an application seed, synchronize it with HR_ROOT, and then create the PDB1 application PDB.
Answer: A,E
NEW QUESTION # 19
Which two are true about creating pluggable databases (PDBs) using snapshots in Oracle 19c and later releases? (Choose two.)
- A. A PDB snapshot depends on a storage snapshot which can only be stored on specific file systems.
- B. A snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems.
- C. A PDB snapshot is always a sparse copy of the source PDB.
- D. A PDB snapshot depends on a storage snapshot which can be stored on any file system.
- E. A PDB snapshot is always a full copy of the source PDB.
- F. A snapshot copy PDB depends on a storage snapshot which can be stored on any file system.
- G. A snapshot copy PDB can be created from a stand-alone clone PDB.
Answer: A,E
NEW QUESTION # 20
Which two are true about Oracle Database Configuration Assistant (DBCA) templates? (Choose two.)
- A. Oracle DBCA templates can store only logical structure and not database files.
- B. Oracle DBCA templates can be used to create new databases and duplicate existing databases.
- C. New templates can only be created by modifying an existing user-created template.
- D. The Data Warehouse template is most suitable when transaction response time is the key criterion.
- E. The General Purpose of Transaction Processing templates are most suitable when concurrency and recoverability are key criteria.
Answer: B,E
Explanation:
https://docs.oracle.com/database/121/ADMQS/GUID-2B8A3B5E-D319-4377-8B22-
8BB67DCC9885.htm#ADMQS0235
NEW QUESTION # 21
Which three are true about recovering tables using RMAN?
- A. RMAN always uses an auxiliary instance.
- B. RMAN can recover tables owned by the SYSTEM user.
- C. RMAN can recover a table after a DDL operation has altered the table structure.
- D. RMAN can recover tables owned by the SYS user.
- E. RMAN can recover tables in a standby database.
- F. RMAN can recover tables in the SYSAUX tablespace.
- G. RMAN can recover tables in the SYSTEM tablespace.
Answer: A,B,C
NEW QUESTION # 22
Which two are true about flashback features in Oracle Database 19c and later releases? (Choose two.)
- A. Flashback logs are automatically purged when DB_FLASHBACK_RETENTION_TARGETis set lower than the time they have already been retained.
- B. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGETonly after there is space pressure.
- C. Flashback logs are automatically purged whenever the value of DB_FLASHBACK_RETENTION_TARGETis changed.
- D. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGETbefore there is space pressure.
- E. 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.
Answer: A,D
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 # 23
Which two are true about a Recovery Manager (RMAN) duplication without a target connection?
- A. RMAN SBT-based backups of the database to be duplicated can be used by the auxiliary instance.
- B. RMAN "pushes" the backups of the database to be duplicated over the network to the auxiliary instance.
- C. RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.
- D. The undo tablespace clause is always required when no connection exists to the recovery catalog and the target database is closed.
- E. The undo tablespace clause is always required when no connection exists to the target instance.
Answer: C,D
NEW QUESTION # 24
Which three are true about requirements for various FLASHBACK operations? (Choose three.)
- A. FLASHBACK drop requires undo to retrieve all versions of a row that existed between two points in time.
- B. FLASHBACK version query requires that the RECYCLEBIN parameter be set to ON.
- C. FLASHBACK version query requires undo to retrieve all versions of a row that existed between two points in time.
- D. FLASHBACK drop requires that the RECYCLEBIN parameter be set to ON.
- E. FLASHBACK DATA ARCHIVE requires undo to store all versions of all rows of a table being tracked.
- F. FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time.
Answer: B,D,F
NEW QUESTION # 25
Which three capabilities require the use of the RMAN recovery catalog? (Choose three.)
- A. using the REPORT SCHEMA command to list a database's current data files and tablespaces
- B. creating encrypted backups
- C. using the REPORT SCHEMA command to list a database's data files and tablespaces at times in the past
- D. using RMAN stored scripts
- E. creating customized reports about a single database's backups
- F. using the KEEP FOREVER clause with the BACKUP command
Answer: C,D,F
Explanation:
A is correct:
https://docs.oracle.com/en/database/oracle/oracle-database/19/rcmrf/keepOption.html
"Specifies that the backup or copy never becomes obsolete (see Example 2-27). A recovery catalog is required when FOREVER is specified because the backup records eventually age out of the control file." B is correct:
https://docs.oracle.com/database/121/RCMRF/rcmsynta013.htm
"Execute CREATE SCRIPT only at the RMAN prompt. RMAN must be connected to a target database and a recovery catalog." F is correct:
https://docs.oracle.com/en/database/oracle/oracle-database/19/rcmrf/REPORT.html
"atClause
This subclause specifies a point in time as a time, SCN, or log sequence number. You must be connected to a recovery catalog when issuing a REPORT SCHEMA command with an AT clause."
NEW QUESTION # 26
Which two are prerequisites for performing Flashback Transaction?
- A. Fast Recovery Area must be enabled for the database
- B. The EXECUTE privilege must be granted to a user on the DBMS_FLASHBACK package.
- C. Undo retention guarantee must be configured for the database.
- D. A supplemental log must be enabled for the primary key.
- E. A supplemental log must be enabled for the primary key.
Answer: B,D
NEW QUESTION # 27
Which two are true about OS groups and users for Oracle Grid Infrastructure and the Oracle Relational Database Management System (RDBMS)? (Choose two.)
- A. By default, members of the OSASM group can access Automatic Storage Management and RDBMS instances.
- B. The same OSDBA group must be used for Automatic Storage Management and the Oracle Database.
- C. The primary group for the Oracle Grid Infrastructure and Oracle Database owners must be the Oracle Inventory group.
- D. The Oracle Grid Infrastructure installation must be owned by the grid user.
- E. The Oracle Grid Infrastructure owner owns Oracle Restart and Oracle Automatic Storage Management binaries.
- F. The Oracle Grid Infrastructure owner must have OSOPER, OSBACKUPDBA, and OSKMDBA as secondary groups.
Answer: B,F
Explanation:
Explanation/Reference: https://docs.oracle.com/database/121/CWWIN/usrgrps.htm#CWWIN-GUID-6FD3C6AE-5A99-
4C6D-85D6-868CBA6F5DAE
NEW QUESTION # 28
Which operating system group is NOT needed to perform an Oracle Database installation?
- A. OSRACDBA
- B. OSOPER
- C. OSKMDBA
- D. OSASM
- E. OSDBA
Answer: A
NEW QUESTION # 29
Examine the RMAN command: RMAN> RUN { ALLOCATE CHANNEL c1 DEVICE TYPE sbt; ALLOCATE CHANNEL c2 DEVICE TYPE sbt; ALLOCATE CHANNEL c3 DEVICE TYPE sbt; BACKUP INCREMENTAL LEVEL = 0 (DATAFILE 1,4,5 CHANNEL c1) (DATAFILE 2,3,9 CHANNEL c2) (DATAFILE 6,7,8 CHANNEL c3); SQL 'ALTER SYSTEM ARCHIVE LOG CURRENT'; } Which statement is true about the command?
- A. It uses multisection backup.
- B. It creates compressed backup sets.
- C. It uses asynchronousI/O for the backup.
- D. It uses parallelization for the backup set.
Answer: D
NEW QUESTION # 30
You upgraded your database from pre-12c to a multitenant container database (CDB) containing pluggable databases (PDBs). Examine the query and its output:
Which two tasks must you perform to add users with SYSBACKUP, SYSDG, and SYSKM privilege to the password file?
- A. Assign the appropriate operating system groups to SYSBACKUP, SYSDG, SYSKM.
- B. Re-createthepasswordfileintheOracleDatabase12cformat. Correct
- C. Re-create the password file with SYSBACKUP, SYSDG, and SYSKM privilege and the FORCE argument set to No.
- D. Re-create the password file with SYSBACKUP, SYSDG, and SYSKM privilege, and FORCE arguments set to Yes.
- E. Grant SYSBACKUP, SYSDG, and SYSKM privileges to the intended users.
Answer: D,E
NEW QUESTION # 31
Choose two. Which two are true about unplugging an application container from a container database and plugging it into a different container database?
- A. Unplugging the application root from a CDB unplugs all its application PDBs.
- B. The application root of an application container should be plugged into the other CDB before its application PDBs are plugged in.
- C. It requires local UNDO mode in both container databases.
- D. It requires only local UNDO mode in the database where the application container will be unplugged.
- E. Plugging the application root into a different CDB plugs in all its application PDBs.
- F. Application PDBs in the application container must be unplugged before the application root is unplugged.
Answer: B,F
NEW QUESTION # 32
For which two requirements can you use the user_tablespaces clause with the create pluggable database command?
- A. to specify the list of user tablespaces to include when moving a non-CDB to a PDB
- B. to exclude a temp tablespace when plugging in a PDB
- C. to specify the list of tablespaces to include when creating a PDB from the CDB seed
- D. to exclude all tablespaces except system, sysaux, and temp when plugging in a PDB
- E. to specify a default tablespace in a PDB cloned from another PDB in the same CDB
- F. to include specific user tablespaces only when relocating a PDB
Answer: A,F
NEW QUESTION # 33
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