Get Latest Apr-2026 Conduct effective penetration tests using VCEDumps 1Z0-083 [Q105-Q125]

Get Latest [Apr-2026] Conduct effective penetration tests using VCEDumps 1Z0-083

Penetration testers simulate 1Z0-083 exam PDF

NEW QUESTION # 105
Examine this configuration:
28.CDB1is a container database.
29.COMMON_USER_PREFIXis set to an empty string.
30.PDB1is a pluggable database in CDB1.
31.APP1_ROOTis an application container in CDB1.
32.APP1_PDB1is an application PDB in APP1_ROOT.
You execute these commands:
$ sqlplus sys/oracle@localhost:1521/cdb1 as sysdba
SQL> CREATE ROLE role1 CONTAINER=CURRENT;
What is true?

• A. ROLE1 will be created only in CDB$ROOT and APP1_ROOT.
• B. It will return an error because creation of a local role is not allowed in CDB$ROOT.
• C. It will return an error because common roles must start with C##.
• D. ROLE1 will be created in CDB$ROOT, PDB1, APP1_ROOT, and APP1_PDB1.
• E. ROLE1 will be created only in CDB$ROOT.

Answer: B

Explanation:
SQL> create role testrole container=current;
create role testrole container=current
* ERROR at line 1:
ORA-65049: Creation of local user or role is not allowed in this container.

NEW QUESTION # 106
Choose three. Which three are true about Oracle Restart?

• A. If you shut down a database instance with SQL*Plus, Oracle Restart interprets this as a database failure and attempts to restart the instance.
• B. The Server Control (SRVCTL) utility can be used to start and stop Oracle Restart.
• C. It is used in both clustered and non-clustered environments.
• D. It can manage Oracle Database instances, Oracle Net Listeners, and Oracle Automatic Storage Management instances.
• E. It runs from the Oracle Grid Infrastructure home.
• F. You can add and remove components from an Oracle Restart configuration with Server Control (SRVCTL) commands.

Answer: C,D,F

NEW QUESTION # 107
Examine this configuration:
4. CDB1is an Oracle Database 12c Release 2 database containing pluggable databases PDB$SEED, PDB1, and PDB2.
5. PDB$SEEDis open READ ONLY
6. PDB1is open READ WRITE
7. PDB2 is MOUNTED.
8. ORACLE_HOMEis /u01/app/oracle/product/18.1.0/dbhome_1.
You execute these commands before upgrading the database to the current release:

For which databases will fixup scripts be created?

• A. CDB1, PDB1, and PDB2 only
• B. PDB$SEED, PDB1, and PDB2 only
• C. CDB1 and PDB$SEED only
• D. CDB1, PDB$SEED, and PDB1 only
• E. CDB1, PDB$SEED, PDB1, and PDB2

Answer: D

Explanation:
For multitenant architecture (CDB and PDB) upgrades, open up all the PDBs that you want the tool to analyze before you run the tool.
https://docs.oracle.com/en/database/oracle/oracle-database/18/spmsu/running-pre-upgrade- information-tool-for-non-cdb-checks.html#GUID-B04CDE73-45F1-4717-98BB-9FCC209DEC01

NEW QUESTION # 108
Which three are true about an application seed pluggable database (PDB)?

• A. It Is automatically synchronized with its application root PDB when an application is upgraded.
• B. It is automatically synchronized with its application root PDB when an application is installed.
• C. A new application PDB created by cloning an application seed PDB can have an old version of the application installed after cloning completes.
• D. It is not required in an application container.
• E. It cannot be dropped from its application container.
• F. It cannot be added to an application container after the application container has already been created.
• G. 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.

Answer: B,C,F,G

NEW QUESTION # 109
Which operating system group is NOT needed to perform an Oracle Database installation?

• A. OSDBA
• B. OSKMDBA
• C. OSRACDBA
• D. OSOPER
• E. OSASM

Answer: D

Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/19/ladbi/creating-operating-system-privileges-groups.html#GUID-164A7218-166D-4B58-9A86-88149E8FCB83

NEW QUESTION # 110
Choose two. Which two statements are true when row-archival management is enabled?

• A. The ORA_ARCHIVE_STATE column is updated in an overnight maintenance job based on activity tracking.
• B. The ROW ARCHIVAL VISIBILITY session parameter defaults to active rows.
• C. The ORA_ARCHIVE_STATE column may only be updated by users with the DBA role set.
• D. The ORA_ARCHIVE_STATE column is only displayed if it is referenced in the column select list of a query
• E. The ORA_ARCHIVE_STATE column may only be queried by users with the DBA role set.

Answer: B,D

NEW QUESTION # 111
You are working on an Oracle Database 19c database. You enabled the Flashback Database feature. Which two statements regarding flashback logs are true? (Choose two.)

• A. Flashback logs are not archived.
• B. Flashback logs are maintained in redo log files.
• C. Flashback logs are used to maintain Flashback Database related errors.
• D. Flashback logs are maintained in the Flash Recovery Area.
• E. Flashback logs need to be cleared manually after you disable Flashback Database.

Answer: A,D

NEW QUESTION # 112
Which three are true about thresholds, metrics, and server-generated alerts? (Choose three.)

• A. A space usage management alert is automatically cleared after the underlying problem is resolved.
• B. Metrics are statistical counts for a specific unit.
• C. All metrics are instance related.
• D. STATISTICS_LEVELmust be set to ALLto generate alerts.
• E. Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY.
• F. They are generated by SMON when a tablespace is 97% full.

Answer: A,B,D

Explanation:
Explanation/Reference: https://docs.oracle.com/cd/E11882_01/server.112/e41573/autostat.htm#PFGRF027
https://blogs.oracle.com/oem/how-to-clear-an-alert-v2

NEW QUESTION # 113
Examine the RMAN commands:
RMAN> CONNECT TARGET "sbu@prod AS SYSBACKUP";
RMAN> CONNECT AUXILIARY "sbu@dup_db AS SYSBACKUP";
RMAN> DUPLICATE TARGET DATABASE TO dup_db FROM ACTIVE DATABASE
PASSWORD FILE SECTION SIZE 400M;
Which statement is true about the DUPLICATE command?

• A. It fails because there is no connection to a recovery catalog.
• B. It succeeds and creates multisection backup sets that are used for active database duplication.
• C. It fails because no parallel channels are allocated for the auxiliary database.
• D. It succeeds only if the target database is in MOUNT state.

Answer: B

NEW QUESTION # 114
Which three are true about monitoring waits for sessions and services? (Choose three.)

• A. V$SESSION_WAIT and V$SESSION both contain details of the event on which a non-waiting session last waited.
• B. V$SESSION_EVENT displays all waits for all past sessions if the wait has occurred at least once for a session.
• C. V$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 session is currently waiting.
• E. V$SERVICE_EVENT displays all waits for all services if the wait has occurred at least once for a service.
• F. V$SESSION_EVENT displays all waits for all past and existing sessions if the wait has occurred at least once for a session.

Answer: C,D,E

NEW QUESTION # 115
Choose two. Which two are true about reclaiming space used by Flashback logs in Oracle Database 19c and later releases?

• A. Space is always reclaimed automatically when the retention period for Flashback logs is lowered.
• B. Space might be reclaimed proactively before space pressure occurs.
• C. Space might be reclaimed automatically when the retention period for Flashback logs is lowered.
• D. Space is only reclaimed when there is space pressure in the Fast Recovery Area (FRA).
• E. Space is always reclaimed proactively before space pressure occurs.

Answer: B,D

NEW QUESTION # 116
Which two are true about reclaiming space used by Flashback logs in Oracle Database 19c and later releases? (Choose two.)

• A. Space might be reclaimed automatically when the retention period for Flashback logs is lowered.
• B. Space is always reclaimed proactively before space pressure occurs.
• C. Space is always reclaimed automatically when the retention period for Flashback logs is lowered.
• D. Space might be reclaimed proactively before space pressure occurs.
• E. Space is only reclaimed when there is space pressure in the Fast Recovery Area. (FRA)

Answer: B,C

Explanation:
The COMPATIBLE initialization parameter must be set to 19.0.0 or higher.
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.
https://docs.oracle.com/en/database/oracle/oracle-database/19/newft/new-features.html#GUID-
4DE9FA4A-BA27-434A-A68E-0B58D8FD686B

NEW QUESTION # 117
Which three are true about RMAN persistent configuration settings, administration, and their effects? (Choose three.)

• A. Backups written to the fast recovery area (FRA) that are oboslete based on the redundancy retention policy can be deleted automatically to free space.
• B. A target database's persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog.
• C. A DBA must specify either a redundancy retention policy or a recovery window retention policy.
• D. A target database's persistent RMAN configuration settings are always stored in the target's control file
• E. The RMAN SHOW ALLcommand displays only settings with nondefault values.
• F. The V$RMAN_CONFIGURATIONview displays only settings with values that have been modified.
• G. Backup older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space.

Answer: D,F,G

Explanation:
Explanation/Reference: https://books.google.com.pk/books?
id=pUEkAAAAQBAJ&pg=PA114&lpg=PA114&dq=V$RMAN_CONFIGURATION+view+displays+only+settings
+with+values+that+have+been+modified&source=bl&ots=fhC9A7ULeX&sig=ACfU3U2- cGhTjmAOpCZhvlL5R4j6ixLRAw&hl=en&sa=X&ved=2ahUKEwjJzf- WmtnoAhXT8eAKHQ9uBG8Q6AEwAHoECAwQJg#v=onepage&q=V%24RMAN_CONFIGURATION%20view
%20displays%20only%20settings%20with%20values%20that%20have%20been%20modified&f=false

NEW QUESTION # 118
Which three are true about opatchauto? (Choose three.)

• A. It performs a shutdown and then a restart of all processes in both Oracle Grid Infrastructure and Oracle Database home during the patching process.
• B. It requires the Oracle Grid Infrastructure and Oracle Database instances to be shut down before being invoked.
• C. It must be invoked by a user with root user privileges.
• D. It applies patches in nonrolling mode by default.
• E. Patches are applied via opatchauto.
• F. It is used to apply interim patches to Oracle Grid Infrastructure and Oracle Database home combinations.
• G. Users must always input patch plans to opatchauto.

Answer: A,C,F

NEW QUESTION # 119
Examine these queries and their output:

After a system crash, an instance restart and an attempted opening of the PDBs result in:

Which two are true? (Choose two.)

• A. Data file 24 cannot be recovered while the CDB is opened.
• B. Data file 24 must be recovered while the CDB is opened.
• C. Data file 24 can be recovered while PDB2 is opened.
• D. Data file 24 can be recovered while CDB$ROOT and PDB$SEED are opened.
• E. Data file 24 must be recovered while PDB2 is closed.
  19c: PDB SYSTEM or UNDO Tablespace Recovery: The CDB and all other PDBs can be left opened. 1. Connect to PDB 2. Shutdown abort the PDB, if its not automatically done. sqlplus sys@sales_pdb as sysdba sql> SHUTDOWN ABORT; OR ALTER PLUGGABLE DATABASE CLOSE ABORT; rman target sys@slaes_pdb rman> restore database; rman> recover database; rman> alter pluggable database sales_pdb open;

Answer: B,C

NEW QUESTION # 120
Which three are true about Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the Manageability Monitor (MMON) background process? (Choose three.)

• A. By default, AWR snapshots are automatically purged after eight days.
• B. AWR snapshots must be deleted when no longer required by ADDM.
• C. ADDM performs its analysis only when a DBA requests it.
• D. ADDM can recommend extending the buffer cache.
• E. By default, MMON creates an AWR snapshot every 30 minutes.
• F. ADDM can recommend shrinking the buffer cache.

Answer: A,B,F

NEW QUESTION # 121
Which two are true about the execution of operating system scripts starting from Oracle Database 19c?

• A. root.sh can be executed automatically by the Database installer only if it is provided with root credentials.
• B. The root password cannot be specified in a response file.
• C. root.sh can be executed automatically by the Database installer only by using sudo credentials.
• D. The sudo password can be specified in a response file.
• E. The sudo password must be specified in a response file.
• F. orainstRoot.sh can be executed automatically by the Database installer by using sudo or root credentials.

Answer: A,D

NEW QUESTION # 122
The HR_ROOT application container must support the execution of a query on a table shared by application local PDBs PDB1 and PDB2, and remote PDB PDB3.
Which three are true? (Choose three.)

• A. A proxy PDB must exist in the application root in the local CDB.
• B. A database link must exist in the remote CDB referring to the local CDB.
• C. The HR_ROOT replica must exist in the remote CDB.
• D. PDB3's application root replica must exist in the local CDB.
• E. A proxy PDB must exist in the application root in the remote CDB.
• F. A database link must exist in the local CDB root referring to the remote CDB.

Answer: A,C,F

Explanation:
Database link must be created in master application root (local CDB) referring to replica application root (remote CDB). Option B Proxy PDB must be created in master application root (local CDB) using this database link.
Option F
Replica application root must exist in remote CDB (created or upgraded using SYNC in local Proxy PDB). Option E With this, we can make a SELECT that will show data from local and remote PDB applications (Query in local master application root using CONTAINERS clause).
https://docs.oracle.com/en/database/oracle/oracle-database/18/multi/administering-application- containers-sql-plus.html#GUID-B96087B5-678C-4781-9464-42FC468B1FCC

NEW QUESTION # 123
Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor?
(Choose two.)

• A. Data Recovery Advisor can proactively check for failures.
• B. Using the Data Recovery Advisor LIST FAILUREcommand always requires that the database for which failures are to be listed is in MOUNTstate.
• C. Data Recovery Advisor can be used if a database is closed.
• D. A failure can be closed only when it has been repaired.
• E. The Data Recovery Advisor CHANGE FAILUREcommand can be used only to change failure priorities.

Answer: A,E

Explanation:
Explanation/Reference:

NEW QUESTION # 124
Which two are true about the Oracle database methodology? (Choose two.)

• A. Tuning activities should stop once agreed service levels for performance have been met.
• B. SQL statements should always be tuned before tuning any file systems.
• C. The alert log should be used to find the database and instance areas most in need of tuning.
• D. The Oracle Database time model should be used to find the database and instance areas most in need of tuning.
• E. Tuning activities should stop once the user is satisfied with performance.
• F. The database instance memory should always be tuned before tuning any file systems.

Answer: B,D

Explanation:
A is correct. It will show what the database is spending most time on, that (usually) indicates where tuning is required.
B and C relate to user experience. We (DBAs) should work with users, to help achieve their requirements. However, we can be proactive outside of this. Just because a user is happy - doesn't mean we can't make them "happier" by doing tuning activities before things get bad. So, neither of these should be true.
D is incorrect, memory is much less likely to be a culprit of an issue, than a filesystem I/O issue.
E is correct. We should never try to tune a file system first. If we make a file system change that fixes one SQL statement - it might harm a different SQL statement. However, if we tune the first SQL statement, it will have no impact on the rest of the system. Therefore, we should try to tune
"bad SQL" first.
F is incorrect - the alert log gives us little/no information to do with tuning.

NEW QUESTION # 125
......

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