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Understanding functional and technical aspects of Oracle Database Administration II Exam Number: 1Z0-083
The following will be discussed in the ORACLE 1Z0-083 dumps:
- Configure and create a CDB
- Upgrade an Oracle Database
- Create a new PDB from the CDB seed
- Backup and Duplicate - Oracle Database: Managing Multitenant Architecture Ed 1
- Evaluate the impact of parameter value changes
- Control CDB and PDB resource usage with the Oracle Resource Manager
- Perform Backup and Recover CDBs and PDBs
- Upgrading and Transporting CDBs and Regular PDBs - Oracle Database: Managing Multitenant Architecture
- Manage CDBs and PDBs - Oracle Database: Managing Multitenant Architecture Ed 1
- Duplicate a Database
- Duplicate an active PDB
- Manage startup, shutdown and availability of CDBs and PDBs
- Explore the structure of PDBs
- Performance management in CDBs and PDBs
- Tuning SQL Statements
- Change the different modes and settings of PDBs
- Manage PDB service names and connections
NEW QUESTION 30
While backing up to an SBT channel, you determine that the read phase of your compressed Recovery Manager (RMAN) incremental level 0 backup is a bottleneck.
FORCE LOGGING is enabled for the database.
Which two could improve read performance? (Choose two.)
- A. Enable asynchronous disk I/O.
- B. Increase the level of RMAN multiplexing.
- C. Increase the size of the database buffer cache.
- D. Increase the size of tape I/O buffers.
- E. Disable FORCE LOGGING for the database.
Answer: A,B
NEW QUESTION 31
The users tablespace consists of data files 3 and 4 and must always be online in read/write mode. Which two are true about using RMAN to perform an open database back up of this tablespace?
- A. Only consistent backups can be created.
- B. Backups must be done incrementally.
- C. Backups must be contained in backup sets.
- D. Backups can be done incrementally.
- E. The database must be registered in an RMAN catalog.
- F. Backups can be taken only if the database is in archivelog mode.
Answer: C,D
NEW QUESTION 32
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. Patches are applied via opatchauto.
- C. It is used to apply interim patches to Oracle Grid Infrastructure and Oracle Database home combinations.
- D. It requires the Oracle Grid Infrastructure and Oracle Database instances to be shut down before being invoked.
- E. It must be invoked by a user with root user privileges.
- F. Users must always input patch plans to opatchauto.
- G. It applies patches in nonrolling mode by default.
Answer: B,D,E
NEW QUESTION 33
Which three are true about backup, restore, and recovery operations done without using Recovery Manager (RMAN)?
- A. Backing up a database in archivelog mode using O/S utilities requires that the database instance be started and the database be in open state.
- B. Backing up a database in noarchivelog mode using O/S utilities requires that the database instance be started and the database be in mount state.
- C. Backing up a database in archivelog mode using O/S utilities requires that the database instance be started and the database be in mount state.
- D. Oracle data file backups, copied using an O/S utility, can be added to the RMAN catalog as image copies.
- E. Oracle archive log backups, copied using an O/S utility, can be added to the RMAN catalog as a backup set.
- F. An Oracle database can be restored from backup files copied using O/S utilities.
- G. Backing up a database in noarchivelog mode using O/S utilities requires that the database instance be shut down.
Answer: D,E,F
NEW QUESTION 34
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_WAIT
- B. VSSESSTAT
- C. VSSESSION_EVENT
- D. VSSESSION
- E. VSSESSION_WAIT_CLASS
Answer: A
NEW QUESTION 35
Which two are true about SQL Performance Analyzer (SPA)? (Choose two.)
- A. It offers fine-grained analysis of all the SQL statements in the analysis task as a group.
- B. SQL statements that were originally run concurrently are run concurrently by SPA.
- C. It provides before and after execution statistics for each SQL statement in the analysis task
- D. It is integrated with the SQL Access Advisor.
- E. It predicts the impact of system changes on SQL workload response time.
Answer: A,E
Explanation:
Reference:
https://www.oracle.com/technetwork/database/manageability/spa-ow09-131455.pdf (4)
NEW QUESTION 36
Which three are true about Automatic Workload Repository (AWR)?
- A. By default, AWR snapshots are retained for 7 days.
- B. Its collection level is determined by the value of the statistics_level database parameter.
- C. AWR data is stored in the system tablespace.
- D. The taking of AWR snapshots can be disabled.
- E. By default, AWR snapshots are taken every 60 minutes.
Answer: B,D,E
NEW QUESTION 37
Which four are true about RMAN backup sets?
- A. A backup set must be written to media.
- B. A data file can be split into multiple sections stored in different backup pieces in the same backup set.
- C. A backup piece can belong to only one backup set.
- D. A backup set can contain only one backup piece.
- E. Blocks from multiple data files can be contained in one backup piece.
- F. Blocks from multiple data files can be contained in one backup set.
- G. A backup set must be written to disk.
- H. A data file can be split into multiple sections stored in different backup sets.
Answer: C,E,G,H
NEW QUESTION 38
Which three are located by using environment variables? (Choose three.)
- A. default directories for temporary files used by temporary tablespaces
- B. the Optimal Flexible Architecture (OFA) compliant path to store Oracle software and configuration files.
- C. the temporary disk space used by Oracle Installer during installation
- D. the list of a disk group names to be mounted by an Oracle Automatic Storage Management (ASM) instance at startup
- E. the location of Oracle Net Services configuration files
- F. the maximum number of database files that can be opened by a database instance
Answer: A,E,F
NEW QUESTION 39
A database is configured in archivelog mode.
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?
- A. after losing an undo tablespace that is in use
- B. after losing all members of the current online redo log group
- C. after losing all members of an inactive online redo log group
- D. after losing all copies of the control file
- E. after losing a sysaux tablespace data file
Answer: D,E
NEW QUESTION 40
Which three are true about an application seed pluggable database (PDB)?
- A. 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.
- B. A new application PDB created by cloning an application seed PDB can have an old version of the application installed after cloning completes.
- C. It is not required in an application container.
- D. It is automatically synchronized with its application root PDB when an application is installed.
- E. It Is automatically synchronized with its application root PDB when an application is upgraded.
- F. It cannot be dropped from its application container.
- G. It cannot be added to an application container after the application container has already been created.
Answer: A,B,D,G
NEW QUESTION 41
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 fail because there is no autobackup of the controlfiles.
- C. It will re-create '/u02/app/oracle/fast_recover_area/cdb1/CDB1/controlfile02.ctl'
- D. It will create '/u01/app/oracle/product/12.2.0.1/db_1/dbs/snapcf_cdb1control02.ctl'.
- E. It will create '/u01/app/oralce/oradata/CDB1/controlfile/controlfile02.ctl'.
Answer: C
NEW QUESTION 42
Which three are true about the SQL Tuning Advisor? (Choose three.)
- A. It can recommend semantic changes to SQL statements.
- B. It builds SQL profiles for each poorly performing SQL statement to prevent regressions.
- C. It checks each query being analyzed for stale statistics.
- D. It only recommends syntactic changes to SQL statements.
- E. It checks each query being analyzed for missing statistics.
- F. It considers all SQL statements being analyzed by the advisor task as a group.
Answer: B,C,E
Explanation:
Reference:
https://docs.oracle.com/database/121/TGSQL/tgsql_sqltune.htm#TGSQL540
NEW QUESTION 43
Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB? (Choose two.)
- A. After the change, any user with the required privilege can create an undo tablespace in the PDBs.
- B. After the change, each existing PDB has to be reopened for the new undo mode to take effect.
- C. After the change, only a common user with the required privilege can create an undo tablespace in CDB&ROOT.
- D. After the change, only one undo tablespace can exist in CDB$ROOT.
- E. Undo tablespaces existing in PDBs must be dropped before the change.
- F. Any new PDB and existing PDBs are automatically configured to use the default undo tablespace in CDB$ROOT.
Answer: A,C
NEW QUESTION 44
Which three are true about backup, restore, and recovery operations done without using Recovery Manager (RMAN)? (Choose three.)
- A. Backing up a database in ARCHIVELOG mode using O/S utilities requires that the database instance be started and the database be in OPEN state.
- B. Oracle data file backups, copied using an O/S utility, can be added to the RMAN catalog as IMAGE COPIES.
- C. Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be started and the dataabse be in the MOUNT state.
- D. Oracle archive log backups, copied using an O/S utility, can be added to the RMAN catalog as a backup set.
- E. Backing up a database in ARCHIVELOG mode using O/S utilities requires that the database instance be started and the database be in MOUNT state.
- F. Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be shut down.
- G. An Oracle database can be restored from backup files copied using O/S utilities.
Answer: B,E,F
NEW QUESTION 45
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How much Oracle Database Administration II Exam Number: 1Z0-083 costs
- Passing Score: 60% or higher
- Types of questions: Performance Based Questions
- Examination Fees: $250 USD
- No. of Questions: 85 Questions
- Length of Exam: 150 min
- Examination Name: Oracle Database Administration II Exam Number: 1Z0-083
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