Verified 1Z0-083 Dumps Q&As - 1Z0-083 Test Engine with Correct Answers [Q87-Q109]

Verified 1Z0-083 Dumps Q&As - 1Z0-083 Test Engine with Correct Answers

Pass Your 1Z0-083 Dumps as PDF Updated on 2024 With 283 Questions

Passing the Oracle 1Z1-083 certification exam demonstrates that a database administrator has a thorough understanding of Oracle database administration, and is capable of performing complex tasks such as managing backup and recovery procedures, optimizing database performance, and ensuring the security of the database. Oracle Database Administration II certification is highly valued by employers, and can lead to better job opportunities and higher salaries.

Oracle 1Z0-083 exam is an important certification exam for anyone who wants to become a certified Oracle Database Administrator. 1Z0-083 exam covers a wide range of topics related to database administration and requires candidates to have a strong understanding of these concepts. With the right preparation and study, however, passing 1Z0-083 exam is achievable and can be a great way to advance your career in this field.

Who should take the Oracle Database Administration II Exam Number: 1Z0-083

Oracle Database Administration II Exam Number: 1Z0-083 has is ideal for:

• Production Database Administrators (DBAs)
• DB Architects
• Development DBAs
• DB designers and analysts

 

NEW QUESTION # 87
Examine this output:

Which two are true? (Choose two.)

• A. Any PDB not specified in the plan will be unable to execute statements in parallel.
• B. PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand.
• C. Any PDB not specified in the plan will be able to use a maximum of 16.5% of the available system resources.
• D. PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand.
• E. PDB3 can use all available parallel execution processes at times.
• F. PDB1 is always limited to 40% of the available system resources regardless of demand.

Answer: A,E

Explanation:
A). Correct as then a PDB will get assigned the default directive with parallel_server_limit set to 0
B). Correct as parallel_server_limit is not specified for PDB3 and it defaults to 100 Quote:
https://docs.oracle.com/database/121/ADMIN/dbrm.htm#ADMIN14008
"If PARALLEL_SERVER_LIMIT is not specified, then it defaults to 100%."
C). Incorrect. A PDB can use more resources:
Quote from
https://docs.oracle.com/database/121/ADMIN/cdb_dbrm.htm#ADMIN13777
"However, any PDB can use more than the guaranteed amount of a resource if there is no resource contention."
D). Incorrect. Shares is a minimum guaranteed value. But a PDB can use more as explained above in C.
E). Incorrect. Nothing confirms that there are only 3 PDBs attached. There may be others using the default pdb directive. Then the share for PDB2 is not 20%
F). Incorrect. parallel_server_limit is an upper limit.

NEW QUESTION # 88
After implementing full Oracle Data Redaction, you change the default value for the number data type as follows:
SQL> SELECT NUMBER_VALUE FROM REDACTION_VALUES_FOR_TYPE_FULL;
NUMBER_VALUE
-------------------------
SQL> EXEC DBMS_REDACT.UPDATE_FULL_REDACTI0N_VALUES(-1)
PL/SQL procedure successfully completed.
SQL> select number_value from redaction_values_for_type_full;
NUMBER VALUE
------------------------
After changing the value, you notice that FULL redaction continues to redact numeric data with a zero.
What must you do to activate the new default value for numeric full redaction?

• A. Re-create redaction policies that use FULL data redaction.
• B. Restart the database instance.
• C. Re-enable redaction policies that use FULL data redaction.
• D. Flush the shared pool.
• E. Re-connect the sessions that access objects with redaction policies defined on them.

Answer: B

Explanation:
About Altering the Default Full Data Redaction Value
You can alter the default displayed values for full Data Redaction polices. By default, 0 is the redacted value when Oracle Database performs full redaction (DBMS_REDACT.FULL) on a column of the NUMBER data type. If you want to change it to another value (for example, 7), then you can run the DBMS_REDACT.UPDATE_FULL_REDACTION_VALUES procedure to modify this value.
The modification applies to all of the Data Redaction policies in the current database instance.
After you modify a value, you must restart the database for it to take effect.

NEW QUESTION # 89
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$SESSION_WAIT and V$SESSION both contain details of the event on which a session is currently waiting.
• C. V$SESSION_EVENT displays all waits for all past sessions if the wait has occurred at least once for a session.
• D. V$SERVICE_EVENT displays all waits for all services if the wait has occurred at least once for a service.
• E. V$SESSION_WAIT_CLASS displays waits broken down by wait class only for waiting sessions.
• F. V$SESSION_EVENT displays all waits for all past and existing sessions if the wait has occurred at least once for a session.

Answer: B,D,E

NEW QUESTION # 90
Which two are true about automatic block repair?

• A. Real-Time Query must be enabled on a primary database for automatic block repair to be done on any of its physical standby databases.
• B. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on that physical standby database.
• C. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on its primary database.
• D. Automatic block repair can repair blocks with no standby database if db_block_checking = TRUE.
• E. It is not possible for media corrupt blocks.

Answer: A,E

NEW QUESTION # 91
Examine these actions:
1.Create a new database for a recovery catalog.
2.Create a tablespace with sufficient space in the catalog database for the recovery catalog.
3.Configure ARCHIVELOG mode for the catalog database.
4.Create a user to own the recovery catalog schema with quota on the tablespace that will contain the catalog.
5.Grant the RECOVERY_CATALOG_OWNER role to the recovery catalog schema owner.
6.Grant the SYSBACKUP privilege to the recovery catalog schema owner.
Which are the minimum actions that must be performed before executing the CREATE CATALOG command?

• A. 2, 4, 5
• B. 1, 2, 4, 5
• C. 2, 4, 5, 6
• D. 1, 2, 3, 4, 5, 6
• E. 1, 3, 4, 5

Answer: A

NEW QUESTION # 92
Choose two. 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?

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

Answer: B,D

NEW QUESTION # 93
A container database (CDB) contains two pluggable databases PDB1 and PDB2.
The local_undo_enabled database property is set to false in the CDB.
Data file 24 of PDB2 was deleted and you need to restore and recover it.
The only RMAN backup that exists was created with the backup database command while connected to CDB$ROOT.
Which three are true?

• A. Data file 24 can be recovered only while connected to PDB2.
• B. Data file 24 can be recovered while connected to PDB2.
• C. Data file 24 can be recovered while connected to CDB$ROOT.
• D. Data file 24 can be restored and recovered while connected to CDB$ROOT.
• E. Data file 24 can be restored only while connected to CDB$ROOT.
• F. Data file 24 can be restored only while connected to PDB2.

Answer: A,B,E

NEW QUESTION # 94
You plan to install Oracle Grid Infrastructure for a Standalone Server and Oracle Database for the first time on a server. Examine this command and its outcome: Which two are true? (Choose two.)

• A. The user account, oracle, and group, oinstall, can be used for all Oracle software installations.
• B. oracle will be granted the SYSASM privilege when installing the Oracle Database software.
• C. oracle will be an owner of the Oracle Inventory.
• D. oracle must be the owner of every Oracle Database installation.
• E. oracle can own an Oracle Database installation but not an Oracle Grid Infrastructure installation.

Answer: A,E

NEW QUESTION # 95
Choose the best answer. You want to transport the UNIVERSITY tablespace from one database to another. The UNIVERSITY tablespace is currently open read/write. The source and destination platforms have the same endian Examine this list of steps:. 1. Make the UNIVERSITY tablespace read-only on the source 2. Export the UNIVERSITY tablespace metadata using EXPDP. 3. Create a cross-platform backup set from the UNIVERSITY source system, using an RMAN command that includes the DATAPUMP clause. 4. Copy the cross-platform backup sets to the destination system. 5. Copy the Data Pump dump set from the source to the destination system. 6. Restore the cross-platform backup set on the destination system using an RMAN command that includes the DATAPUMP clause. 7. Import the UNIVERSITY tablespace metadata using IMPDP. 8. Make the UNIVERSITY tablespace read/write on the destination system. Which are the minimum number of steps required, in the correct order, to transport the UNIVERSITY tablespace?

• A. 3,4,6
• B. 2,3,4,5,6,7
• C. 1,3,4,6,8
• D. 1,2,3,4,5,6,7,8

Answer: A

NEW QUESTION # 96
A user complains about poor database performance.
You want to verify if the user's session has waited for certain types of I/O activity. Which view displays all waits waited on by a session at least once?

• A. V$SESSION_EVENT
• B. V$SESSION
• C. V$SESSTAT
• D. V$SESSION_WAIT
• E. V$SESSION_WAIT_CLASS

Answer: A

Explanation:
Reference:
https://docs.oracle.com/cd/E29597_01/server.1111/e16638/instance_tune.htm

NEW QUESTION # 97
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 PDB snapshot is always a full copy of the source PDB.
• C. A snapshot copy PDB depends on a storage snapshot which can be stored on any file system.
• D. A snapshot copy PDB can be created from a stand-alone clone PDB.
• E. A PDB snapshot depends on a storage snapshot which can be stored on any file system.
• F. A snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems.
• G. A PDB snapshot is always a sparse copy of the source PDB.

Answer: D,F

Explanation:
G:
https://docs.oracle.com/en/database/oracle/oracle-database/18/multi/cloning-a-pdb.html#GUID- F26C8A55-2465-475A-905A-83BD2E68AE6E and then create a SNAPSHOT COPY PDB from the standalone PDB.
C:
Storage requirements depend on the setting of the CLONEDB initialization parameter:
CLONEDB=FALSE
The underlying file system for the source PDB files must support storage snapshots. Such file systems include Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Direct NFS Client storage. Oracle Exadata supports snapshot copy functionality on ASM configured with sparse ASM grid disks.
CLONEDB=TRUE
The underlying file system for the source PDB files can be any local file system, network file system (NFS), or clustered file system that has Direct NFS enabled and supports sparse files.
Most UNIX systems meet these requirements, including Oracle ACFS and ZFS. However, when CLONEDB=TRUE, the source PDB must remain in open read-only mode when clones exist.

NEW QUESTION # 98
Which two are true about OS groups and users for Oracle Grid Infrastructure and the Oracle Relational Database Management System (RDBMS)? (Choose two.)

• A. The Oracle Grid Infrastructure installation must be owned by the grid user.
• B. The Oracle Grid Infrastructure owner must have OSOPER, OSBACKUPDBA, and OSKMDBA as secondary groups.
• C. The same OSDBA group must be used for Automatic Storage Management and the Oracle Database.
• D. The Oracle Grid Infrastructure owner owns Oracle Restart and Oracle Automatic Storage Management binaries.
• E. By default, members of the OSASM group can access Automatic Storage Management and RDBMS instances.
• F. The primary group for the Oracle Grid Infrastructure and Oracle Database owners must be the Oracle Inventory group.

Answer: B,C

Explanation:
Reference:
https://docs.oracle.com/database/121/CWWIN/usrgrps.htm#CWWIN-GUID-6FD3C6AE-5A99- 4C6D-85D6-868CBA6F5DAE

NEW QUESTION # 99
Which two are true about creating RMAN backups for an Oracle container database? (Choose two.)

• A. The BACKUP DATABASE PLUS ARCHIVELOGcommand will back up archive logs when RMAN is connected to a PDB.
• B. Tablespaces from different PDBs with identical names must be backed up by connecting RMAN separately to each PDB to back up the tablespaces.
• C. The BACKUP PLUGGABLE DATABASEcommand can be used to back up CDB$ROOT.
• D. The BACKUP DATABASEcommand will create a pluggable database (PDB) backup when RMAN is connected to a PDB.
• E. SPFILEbackups can be created while connected to an application root PDB.

Answer: B,D

NEW QUESTION # 100
A database is configured in ARCHIVELOGmode.
A full RMAN backup exists but no control file backup to trace has been taken.
A media failure has occurred.
In which two scenarios is incomplete recovery required? (Choose two.)

• A. after losing an UNDOtablespace that is in use
• B. after losing all copies of the control file
• C. after losing all members of an INACTIVE online redo log group
• D. after losing all members of the CURRENTonline redo log group
• E. after losing a SYSAUXtablespace data file

Answer: B,C

NEW QUESTION # 101
Which three are true about upgrading Oracle Grid Infrastructure? (Choose three.)

• A. An existing Oracle base can be used.
• B. Only the grid user can perform the upgrade.
• C. The newer version is installed in a separate Oracle Grid Infrastructure home on the same server as the existing version.
• D. A direct upgrade can be performed only from the immediately preceding Oracle Grid Infrastructure version.
• E. The upgrade process will automatically install all mandatory patches for the current version of Oracle Grid Infrastructure.
• F. Existing Oracle Database instances must be shut down before starting the upgrade.

Answer: B,E,F

NEW QUESTION # 102
Which three are true about corrupted data blocks and their recovery in an Oracle Database?

• A. If a row lock is held by a nonexistent transaction, the block containing the row is media corrupt.
• B. If a row lock is held by a nonexistent transaction, the block containing the row is logically corrupt.
• C. DB_LOST_WRITE_PROTECT=TYPICAL causes extra logging overhead on the standby database.
• D. DB_BLOCK_CHECKING=TRUE causes a check sum to be added to each data block to help detect physical or media corruption.
• E. A media corrupt block is one where the block is not formatted correctly.
• F. The ANALYZE TABLE VALIDATE STRUCTURE CASCADE command verifies that each table row has an index entry pointing to it.

Answer: B,C,F

NEW QUESTION # 103
Examine this configuration:

While CDB1 is open, '/u02/app/oracle/fast_recover_area/cdb1/CDB1/controlfile02.ctl' is accidentally deleted.
To recover from this critical failure, you execute these commands:

What will be the outcome?

• A. It will create '$ORACLE_HOME/dbs/cdb1/CDB1/controlfile02.ctl'
• B. It will re-create '/u02/app/oracle/fast_recover_area/cdb1/CDB1/controlfile02.ctl'
• C. It will create '/u01/app/oralce/oradata/CDB1/controlfile/controlfile02.ctl'.
• D. It will create '/u01/app/oracle/product/12.2.0.1/db_1/dbs/snapcf_cdb1control02.ctl'.
• E. It will fail because there is no autobackup of the controlfiles.

Answer: B

NEW QUESTION # 104
You are administering a multitenant container database (COB) that contains two pluggable databases (PDBs), pdb1 and pdb2. You are connected to pdb2 as a common user with DBA privileges. The statistics_level parameter is PDB modifiable. As the user sys, execute the following command on pdb2: SQL> ALTER SYSTEM SET STATISTICS_LEVEL=ALL SID='*' SCOPE=SPFILE; Which statement is true about the result of this command?

• A. The statistics_level parameter is set to all when the root database is restarted.
• B. The statistics_level parameter is set to all when any of the PDBs is reopened.
• C. The statistics_level parameter is set to all only for PDB2 when it is reopened.
• D. The statement is ignored because there is no SPFILE for a PDB.

Answer: C

NEW QUESTION # 105
You have configured RMAN SBT channels to write backups to media.
You then take an RMAN backup by using this command:

Which three are true?

• A. The spfile is included in the self-contained archival backup.
• B. All archive logs created after this backup are kept for two years.
• C. The restore point is a label for the system change number (SCN) that will be saved two years after the archival backup was taken.
• D. The data file backups in the self-contained archive backup are not considered obsolete for two years regardless of the retention policy.
• E. The restore point is a label for the system change number (SCN) before the archival backup was taken.
• F. The control file is included in the self-contained archival backup.

Answer: B,E,F

NEW QUESTION # 106
Which three are true about Database Point-in-Time Recovery? (Choose three.)

• A. The target point for the recovery must be specified as a stime or System Change Number (SCN).
• B. Database Point-in-Time Recovery is performed by the Managed Recovery Process (MRP)
• C. The Database must be in ARCHIVELOG mode.
• D. The database must be in MOUNT state when performing Database Point-in-Time Recovery.
• E. The database must be open RESETLOGS after Database Point-in-Time Recovery.
• F. The database must have FLASHBACK DATABASE ON to perform Database Point-in-Time Recovery.

Answer: C,D,E

Explanation:
https://docs.oracle.com/cd/B19306_01/backup.102/b14192/flashptr006.htm#:~:text=Database%20point%2Din%2Dtime%20recovery%20(DBPITR)%20restores%20the,forward%20to%20the%20target%20time.

NEW QUESTION # 107
Examine this configuration:
19.CDB1is a container database.
20.APP_ROOTis an application root in CDB1.
21.APP_PDB1is an application PDB in APP_ROOT.
22.FLASHBACK DATABASEis ON.
You execute these commands:

Which table or set of tables will exist after the Flashback operation has completed?

• A. CDB1_TAB, APP_ROOT_TAB, and APP_PDB1_TAB
• B. CDB1_TAB only
• C. CDB1_TAB and APP_ROOT_TAB
• D. none of the tables, because all three tables will be dropped
• E. CDB1_TAB and APP_PDB1_TAB

Answer: E

Explanation:
To perform a flashback operation for an application container, you must perform flashback operations for the application root and all the individual application PDBs that are part of the application container. Performing a flashback operation on the application root reverts only the application root to the specified point in time.
https://docs.oracle.com/en/database/oracle/oracle-database/19/bradv/rman-performing- flashback-dbpitr.html#GUID-66B1A12D-1C92-43B5-A204-AA8A6D177ABD

NEW QUESTION # 108
Choose two. Which two are true about Oracle Grid Infrastructure for a Standalone Server?

• A. It supports volume management, file system, and automatic restart capabilities.
• B. The CSS daemon runs from the Grid Infrastructure home.
• C. It requires Oracle Automatic Storage Management (ASM) components to be installed separately.
• D. It must be installed before the Oracle database software is installed.
• E. It can manage database resources on the server where it is installed or on a different server.

Answer: A,B

NEW QUESTION # 109
......

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