1Z0-083 exam questions for practice in 2026 Updated 283 Questions [Q109-Q127]

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1Z0-083 exam questions for practice in 2026 Updated 283 Questions

Updated Oct-2026 Premium 1Z0-083 Exam Engine pdf – Download Free Updated 283 Questions

Oracle 1Z0-083 Exam Syllabus Topics:

Section	Objectives
Topic 1: Database Backup and Recovery	– RMAN configuration and backup strategies – Database recovery techniques
Topic 2: Performance Management	– Automatic Workload Repository (AWR) and diagnostics – SQL performance tuning
Topic 3: Storage and Space Management	– Segment management – Tablespaces and datafiles
Topic 4: Database Architecture and Administration	– Multitenant container database (CDB/PDB) concepts – Oracle Database architecture components
Topic 5: Security Management	– User management and privileges – Database auditing and encryption

NEW QUESTION 109
Which three are true about an application seed pluggable database (PDB)? (Choose three.)

It is automatically synchronized with its application root PDB when an application is upgraded.

It cannot be added to an application container after the application container has already been created.

A new application PDB created by cloning an application seed PDB can have an old version of the application installed after cloning completes.

It is automatically synchronized with its application root PDB when an application is installed.

It cannot be dropped from its application container.

A new application PDB created by cloning an application seed PDB can have an up-to-date version of the application installed after cloning completes.

It is not required in an application container.

https://docs.oracle.com/en/database/oracle/oracle-database/19/multi/creating-removing-application-containers-seeds-with-sql-plus.html#GUID-065649AC-18ED-4858-ACC5-36F011362A83

NEW QUESTION 110
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.)

Create an application seed, and install HR_APP in it.

Create the PDB1 application PDB and install HR_APP in it.

Create an application seed, synchronize it with HR_ROOT, and then create the PDB1 application PDB.

Create the PBD1 application PDB and synchronize it with HR_ROOT.

Create the PBD1 application PDB and synchronize it with PDB$SEED.

NEW QUESTION 111
Choose two. Which two are true about a read-only Oracle home?

It is enabled by performing a software-only Oracle Database installation and then running the roohctl -enable script.

It requires the Rapid Home Provisioning service.

Its configuration data and log files reside in subdirectories under the Oracle home.

It is enabled by performing an Oracle Database installation with database creation and then running the roohctl -enable script.

It contains an image that can be distributed across multiple servers.

NEW QUESTION 112
SQL Performance Analyzer (SPA) has reported several regressed SQL statements for one of your databases.
Which action could help in the performance management of these regressed SQL statements?

Create SQL plan directives for each of the regressed statements.

Use The SQL Tuning Advisor for each of the regressed statements.

Create an adaptive execution plan for each of the regressed statements

Use the SQL Access Advisor for each of the regressed statements.

NEW QUESTION 113
Which three can be done using Oracle Database Configuration Assistant (DBCA) starting from Oracle Database 19c? (Choose three.)

cloning a remote container database in interactive mode

cloning a remote pluggable database in silent mode

relocating a remote pluggable database in interactive mode

relocating a remote container database in silent mode

cloning a remote container database in silent mode

relocating a remote pluggable database in silent mode

relocating aremote container database in interactive mode

NEW QUESTION 114
Which four are true about RMAN backup sets?

A backup set must be written to media.

Blocks from multiple data files can be contained in one backup set.

A backup set must be written to disk.

Blocks from multiple data files can be contained in one backup piece.

A data file can be split into multiple sections stored in different backup sets.

A backup piece can belong to only one backup set.

A backup set can contain only one backup piece.

A data file can be split into multiple sections stored in different backup pieces in the same backup set.

NEW QUESTION 115
Choose two. Which two are true about unplugging an application container from a container database and plugging it into a different container database?

Plugging the application root into a different CDB plugs in all its application PDBs.

The application root of an application container should be plugged into the other CDB before its application PDBs are plugged in.

Application PDBs in the application container must be unplugged before the application root is unplugged.

Unplugging the application root from a CDB unplugs all its application PDBs.

It requires only local UNDO mode in the database where the application container will be unplugged.

It requires local UNDO mode in both container databases.

NEW QUESTION 116
Which three are true about Automatic Workload Repository (AWR)? (Choose three.)

By default, AWR snapshots are taken every 60 minutes.

Its collection level is determined by the value of the STATISTICS_LEVEL database parameter.

By default, AWR snapshots are retained for 7 days.

The taking of AWR snapshots can be disabled.

AWR data is stored in the SYSTEM tablespace.

NEW QUESTION 117
Choose three. Which three are true about interpreting Recovery Manager (RMAN) error stacks returned to standard output?

If an RMAN command fails, the output will only identify the command that failed.

Some messages in the error stack are not errors.

If an RMAN command fails, the output will identify the channel ID where the failure occurred. D)Media Management errors appear as a line with “Additional information” and a number.

Media Management errors appear as a line with “sbtio” and a number.

Media Management errors appear as a line with “sbtio”.

NEW QUESTION 118
Which two are true about Oracle Database Configuration Assistant (DBCA) templates?

Oracle DBCA templates can store only logical structure and not database files.

The General Purpose or Transaction Processing templates are most suitable when concurrency and recoverability are key criteria.

New templates can only be created by modifying an existing user-created template.

Oracle DBCA templates can be used to create new databases and duplicate existing databases.

The Data Warehouse template is most suitable when transaction response time is the key criterion.

NEW QUESTION 119
Which three are true about recovering tables using RMAN?

RMAN can recover tables owned by the SYSTEM user.

RMAN can recover tables owned by the SYS user.

RMAN can recover tables in the SYSTEM tablespace.

RMAN always uses an auxiliary instance.

RMAN can recover a table after a DDL operation has altered the table structure.

RMAN can recover tables in the SYSAUX tablespace.

RMAN can recover tables in a standby database.

NEW QUESTION 120
Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.

A connection to an auxiliary instance is always required.

A subset of the target database can be duplicated.

A new DBID is always created for the duplicated database.

A connection to the recovery catalog instance is always required.

A backup of the target database is always required.

Duplication can be done by having the target database instance push copies to the auxiliary database instance.

A connection to the target database instance is always required.

NEW QUESTION 121
Which three are true about creating container databases (CDBs) and pluggable databases (PDBs) in Oracle 19c and later releases? (Choose three.)

A PDB snapshot can be a sparse copy of a source PDB.

A PDB snapshot depends on an existing storage snapshot of the source PDB.

A CDB can be duplicated using Recovery Manager (RMAN) with no configuration required before starting the duplication.

A CDB can be duplicated using the Database Configuration Assistant (DBCA) in silent mode with no configuration required before starting the duplication.

A PDB snapshot can be a full copy of a source PDB.

A snapshot copy PDB can be a full copy of a source PDB.

A snapshot copy PDB does not depend on an existing storage snapshot of the source PDB.

A, E sparse / full depending on storage
D – no configuration required:
https://docs.oracle.com/en/database/oracle/oracle-database/19/duplicate-cdbs-using-dbca-silent- mode/index.html

NEW QUESTION 122
Which two are true about OS groups and users for Oracle Grid Infrastructure and the Oracle Relational Database Management System (RDBMS)? (Choose two.)

By default, members of the OSASM group can access Automatic Storage Management and RDBMS instances.

The primary group for the Oracle Grid Infrastructure and Oracle Database owners must be the Oracle Inventory group.

The Oracle Grid Infrastructure installation must be owned by the grid user.

The Oracle Grid Infrastructure owner owns Oracle Restart and Oracle Automatic Storage Management binaries.

The Oracle Grid Infrastructure owner must have OSOPER, OSBACKUPDBA, and OSKMDBA as secondary groups.

The same OSDBA group must be used for Automatic Storage Management and the Oracle Database.

NEW QUESTION 123
Which three are true? (Choose three.)

Virtual Private Database (VPD) policies on objects in an application root are automatically synchronized with all application PDBs contained in the application container.

Application-common TSDP policies are always container specific.

Application-common Transparent Security Data Protection (TSDP) policies can be created only within an application install/patch BEGIN-END block.

Application-common Oracle Label Security (OLS) policies cannot be created in an application root outside an install/patch BEGIN-END block.

Fine-grained auditing (FGA) policies in an application root are automatically synchronized to all application PDBs contained in the application container.

Application-common OLS policies can be created in an application root inside an install/patch BEGIN-END block.

Unified auditing can be automatically synchronized to all application PDBs in an application container.

NEW QUESTION 124
PDB1 and PBD2 are pluggable databases in CDB1.
Examine these commands:

CDB1 is then restarted.
Which three are true? (Choose three.)

PDB2 will be MOUNTED.

PDB1 will be MOUNTED.

PDB$SEED will be opened READ ONLY.

PDB2 will be opened READ WRITE.

PDB1 will be opened READ WRITE.

PDB$SEED will be MOUNTED.

NEW QUESTION 125
Oracle Managed Files (OMF) is enabled in a CDB and this command is successfully executed:

Which three are true? (Choose three.)

Application PDBs that are subsequently created in the APP1 application container will be cloned from APP1$SEED.

An application seed PDB is created for APP1.

An application root PDB is created for APP1.

A default service is created for the application root APP1.

Application PDBs that are subsequently created in the APP1 application container will be cloned from PDB$SEED.

APP1 can never be unplugged.

NEW QUESTION 126
Which two are true about the Oracle database methodology? (Choose two.)

The Oracle Database time model should be used to find the database and instance areas most in need of tuning.

Tuning activities should stop once the user is satisfied with performance.

Tuning activities should stop once agreed service levels for performance have been met.

The database instance memory should always be tuned before tuning any file systems.

SQL statements should always be tuned before tuning any file systems.

The alert log should be used to find the database and instance areas most in need of tuning.

NEW QUESTION 127
Which two are true about Oracle instance recovery? (Choose three.)

Recovery begins from the beginning of the CURRENT redo log group.

Recovery begins from the last checkpoint position that was calculated by the Database Writer before instance failure.

Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIV

Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the datanase is opened.

Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.

Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).

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1Z0-083 exam questions for practice in 2026 Updated 283 Questions [Q109-Q127]

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