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Oracle 1Z0-083 certification exam is an excellent opportunity for database administrators and other IT professionals to validate their skills and knowledge in advanced database administration concepts. Oracle Database Administration II certification can help professionals advance their careers and increase their earning potential. To prepare for the exam, candidates should have a good understanding of Oracle database administration concepts and should consider taking training courses and using study materials.
To pass the Oracle 1Z0-083 exam, candidates must have a strong understanding of Oracle database concepts and be able to apply them in real-world scenarios. They should also be familiar with the latest Oracle database technologies and trends. Candidates must also have hands-on experience with Oracle database administration and be able to troubleshoot and resolve issues quickly.
NEW QUESTION # 56
Which two are true about data movement between a non-CDB and a PDB using Data Pump?
(Choose two.)
- A. Oracle attempts to convert common users to conventional users when moving schemas from a PDB to a non-CDB.
- B. A new PDB is automatically created when importing a non-CDB into a CDB.
- C. Tablespaces are automatically created as neeed while importing full exports in either a non-CDB or a PDB.
- D. Oracle attempts to convert conventional database users to local users when moving schemas from a non-CDB to a PDB.
- E. Moving data from a PDB to a non-CDB is only possible by using transportable tablespace export and import.
- F. Moving data from a non-CDB to a PDB is only possible by using conventional export and import.
Answer: A,D
Explanation:
E,F -> Incorrect -> tablespace export/import can be conventional or transportable A,C -> Nothing is created automatically you must create what you need.
NEW QUESTION # 57
Which four are true about a Recovery Manager (RMAN) duplication without a TARGET connection? (Choose four.)
- A. The NOREDO clause must be used if the backups of the database being duplicated were taken when the database was in NOARCHIVELOG mode.
- B. RMAN "pushes" the backups of the database to be duplicated over the network to the auxiliary instance.
- C. RMAN SBT-based backups of the database to be duplicated can be used by the auxiliary instance.
- D. RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.
- E. The NOREDO clause can be used if the backups of the database being duplicated were taken when the database was in ARCHIVELOG mode.
- F. The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is opened.
- G. The UNDO TABLESPACE clause is always required when no connection exists to the TARGET instance.
- H. The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is closed.
Answer: A,C,D,E
Explanation:
A is correct:
"Therefore, you must use the NOREDO option when the source database was in NOARCHIVELOG mode when the backups were taken." D is correct:
"You can also use the NOREDO option when you do not want to apply archived redo log files to a consistent backup." E is correct:
This method is not supported for backups that are stored on tape devices H is correct:
"Backup-based duplication without a connection to target or a recovery catalog RMAN creates duplicate files from RMAN backups and copies that were placed in a designated BACKUP LOCATION."
NEW QUESTION # 58
Which three are true about Automatic Workload Repository (AWR) and Automatic Database Diagnostic Monitor (ADDM) in an Oracle multitenant environment? (Choose three.)
- A. AWR snapshots can be created in CDB$ROOT.
- B. ADDM can run in a nonroot container.
- C. No AWR data is stored in the CDB$ROOT SYSAUX tablespace.
- D. All AWR data is stored in the CDB$ROOT SYSAUX tablespace.
- E. AWR snapshots can be created in a PDB.
- F. AWR reports can be generated while connected to any container.
Answer: C,E,F
NEW QUESTION # 59
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 be stored on any file system.
- B. A PDB snapshot depends on a storage snapshot which can only be stored on specific file systems.
- C. A PDB snapshot is always a full copy of the source PDB.
- D. A snapshot copy PDB can be created from a stand-alone clone PDB.
- E. A snapshot copy PDB depends on a storage snapshot which can be stored on any file system.
- F. A PDB snapshot is always a sparse copy of the source PDB.
- G. A snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems.
Answer: B,C
NEW QUESTION # 60
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 format.
Examine this list of steps:
1. Make the UNIVERSITY tablespace read-only on the source system.
2. Export the UNIVERSITY tablespace metadata using EXPDP.
3. Create a cross-platform backup set from the UNIVERSITY tablespace on the 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. 1, 3, 4, 6, 8
- C. 1, 2, 3, 4, 5, 6, 7, 8
- D. 2, 3, 4, 5, 6, 7
Answer: B
NEW QUESTION # 61
Which three are true about Database Point-in-Time Recovery? (Choose three.)
- A. The database must be open RESETLOGS after Database Point-in-Time Recovery.
- B. The database must have FLASHBACK DATABASE ON to perform Database Point-in-Time Recovery.
- C. The target point for the recovery must be specified as a stime or System Change Number (SCN).
- D. The Database must be in ARCHIVELOG mode.
- E. The database must be in MOUNT state when performing Database Point-in-Time Recovery.
- F. Database Point-in-Time Recovery is performed by the Managed Recovery Process (MRP)
Answer: A,D,E
Explanation:
Archivelog mode and mount state are needed (B, and D)
After the restore you need to open with reset logs (F)
E is discarted because sequence number also is valid
https://docs.oracle.com/cd/B19306_01/backup.102/b14192/flashptr006.htm#:~:text=Database%2
0point%2Din%2Dtime%20recovery%20(DBPITR)%20restores%20the,forward%20to%20the%20t arget%20time.
NEW QUESTION # 62
You plan to perform cross-platform PDB transport using XTTS.
Which two are true? (Choose two.)
- A. The source PDB can be in MOUNT or OPEN state.
- B. Automatic conversion of endianness occurs.
- C. The source PDB must not be an application root.
- D. A backup of the PDB must exist, taken using the BACKUP command with the TO PLATFORM clause.
- E. The source PDB must be in MOUNT state.
- F. The source and target platforms must have the same endianness.
Answer: A,F
NEW QUESTION # 63
Which two are true about common objects? (Choose two.)
- A. They can be created only in an application root.
- B. They can be extended data-linked in CDB$ROOT.
- C. They can exist in CDB$ROOT and an application root.
- D. They can be only metadata-linked in an application container.
- E. They can be created only in CDB$ROOT.
- F. They can exist in user-defined schemas only in application containers.
Answer: A,C
Explanation:
A common object is defined in either the CDB root or an application root, and can be referenced using metadata links or object links. A local object is every object that is not a common object.
Database-supplied common objects are defined in CDB$ROOT and cannot be changed. Oracle Database does not support creation of common objects in CDB$ROOT.
You can create most schema objects - such as tables, views, PL/SQL and Java program units, sequences, and so on-as common objects in an application root. If the object exists in an application root, then it is called an application common object.
A local user can own a common object. Also, a common user can own a local object, but only when the object is not data-linked or metadata-linked, and is also neither a metadata link nor a data link.
NEW QUESTION # 64
Which three are true about Automatic Workload Repository (AWR)?
- A. By default, AWR snapshots are retained for 7 days.
- B. AWR data is stored in the system tablespace.
- C. By default, AWR snapshots are taken every 60 minutes.
- D. Its collection level is determined by the value of the statistics_level database parameter.
- E. The taking of AWR snapshots can be disabled.
Answer: C,D,E
NEW QUESTION # 65
choose three Which three are true about RMAN duplexed backup sets or image copies?
- A. An image copy on sbt can be copied to disk.
- B. A backup set may be duplexed with both copies written to disk.
- C. A backup set may be duplexed with both copies written to sbt.
- D. An image copy on disk can be copied to disk.
- E. An image copy on disk can be copied to sbt.
- F. A backup set may be duplexed so that one copy is written to sbt and the other to disk.
Answer: B,C,D
NEW QUESTION # 66
Examine this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are pluggable databases in CDB1.
You execute these commands successfully:
Which two are true? (Choose two.)
- A. Redo logs are opened.
- B. PDB1 and PDB2 are in MOUNT state.
- C. CDB$ROOT is in MOUNT state.
- D. PDB1 and PDB2 are in READ ONLY state.
- E. PDB$SEED is in READ ONLY state.
Answer: A,E
NEW QUESTION # 67
Automatic Shared Memory Management is disabled for one of your database instances. Some SQL statements perform poorly due to excessive hard parse activity, thereby degrading performance. What would be your next step?
- A. Run the Memory Advisor for the Program Global Area.
- B. Run the Memory Advisor for the System Global Area.
- C. Run the Memory Advisor for the shared pool.
- D. Run the SQL Access Advisor.
- E. Run the SQL Tunning Advisor.
Answer: C
NEW QUESTION # 68
You have configured RMAN SBT channels to write backups to medi
a. You then take an RMAN backup by using this command: Which three are true? (Choose three.)
- A. The control file is included in the self-contained archival backup.
- B. The restore point is a label for the system change number (SCN) before the archival backup was taken.
- C. The data file backups in the self-contained archive backup are not considered obsolete for two years regardless of the retention policy.
- D. The SPFILE is included in the self-contaied archival backup.
- E. All archive logs created after this backup are kept for two years.
- F. The restore point is a label for the system change number (SCN) that will be saved two years after the archival backup was taken.
Answer: A,C,D
NEW QUESTION # 69
Which two are true about Rapid Home Provisioning (RHP), which has been available since Orcale 18c? (Choose two.)
- A. It is an Oracle Database service
- B. It can be used to provision middleware.
- C. It can be used to patch Grid Infrastructure homes containing Oracle Restart.
- D. It cannot be used to upgrade Oracle Database homes.
- E. It can be used to provision applications.
Answer: B,E
NEW QUESTION # 70
Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)
- A. A new DBID is always created for the duplicated database.
- B. A subset of the target database can be duplicated.
- C. Duplication can be done by having the target database instance push copies to the auxiliary database instance.
- D. A backup of the target database is always required.
- E. Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.
- F. A connection to the target database instance is always required.
- G. A connection to an auxiliary instance is always required.
- H. A connection to the recovery catalog instance is always required.
Answer: C,D,E,G
NEW QUESTION # 71
Examine this command for creating pluggable database PDB2 in container database CDB2 CREATE PLUGGABLE DATABASE pdb2 ADMIN USER pdb2_adrn IDENTIFIED BY 12 3pdb ROLES=(CONNECT) ; Select three options, any one of which is required for it to execute successfully.
- A. Enable only OMF.
- B. Set the pdb_file_name_convert parameter and enable OMF.
- C. Add only the create_file_dest clause to the statement.
- D. Add the file_mame_comvert clause to the statement and enable Oracle Managed Files (OMF).
- E. Add the file_name_convert clause to the statement and set the pdb_file_name_convert parameter.
- F. Set only the pdb_file_name_convert parameter.
Answer: B,D,E
NEW QUESTION # 72
Which two are true about RMAN encryption?
- A. Password encryption can be persistently configured using the configure encryption command.
- B. RMAN can encrypt the Oracle Database password file.
- C. The set encryption command overrides encryption settings specified by the configure encryption command.
- D. Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available.
- E. RMAN encryption keys are stored in a database keystore.
Answer: C,E
NEW QUESTION # 73
Which three are true about transporting databases across platforms using Recovery Manager (RMAN) image copies? (Choose three.)
- A. A new DBID is automatically created for the transported database.
- B. By default, the transported database will use Oracle Managed Files (OMF)
- C. Databases can be transported between systems with different endian formats.
- D. Data files can be converted on the destination system.
- E. The password file is automatically converted by RMAN.
- F. Data files can be converted on the source system.
Answer: B,D,F
Explanation:
A: If you do not provide a destination, then the DB_FILE_CREATE_DEST initialization parameter must be set in the target platform. RMAN restores the data files to the location specified by this parameter using new Oracle Managed File (OMF) names.
BC: While creating the cross-platform backup to transport a database, you can convert the database either on the source database or the destination database. The benefit of performing the conversion on the destination database is that the processing overhead of the convert operation is offloaded from the source to the destination database.
D is incorrect. Convert operation will not change DBID explicitly. You will have to use DBNEWID utility to change if you wish to.
E is incorrect. The source platform and destination platform must use the same endian format.
NEW QUESTION # 74
Examine this configuration:
CDB1 is a container database.
PDB1 and PDB2 are pluggable databases in CDB1.
You execute these commands successfully:
Which two are true? (Choose two.)
- A. Redo logs are opened.
- B. PDB1 and PDB2 are in MOUNT state.
- C. CDB$ROOT is in MOUNT state.
- D. PDB1 and PDB2 are in READ ONLY state.
- E. PDB$SEED is in READ ONLY state.
Answer: A,E
NEW QUESTION # 75
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