[2024] Pass Oracle 1Z0-083 Premium Files Test Engine pdf - Free Dumps Collection [Q59-Q84]

[2024] Pass Oracle 1Z0-083 Premium Files Test Engine pdf - Free Dumps Collection

New 2024 Realistic 1Z0-083 Dumps Test Engine Exam Questions in here

NEW QUESTION # 59
Which two arc true about the Automatic Database Diagnostic Monitor (ADDM)?

• A. Results are written to the alert log.
• B. By default it analyzes a period of time corresponding to the last 24 hours of activity.
• C. When ADDM reports multiple findings, summing all their impacts can yield to more than 100% of DB time
• D. It runs automatically after each AWR snapshot.
• E. By default it analyzes a period of time corresponding to the last 4 hours of activity.

Answer: C,D

NEW QUESTION # 60
Which two are true about the execution of operating system scripts starting from Oracle Database 19c? (Choose two.)

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

Answer: C,D

NEW QUESTION # 61
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 only reclaimed when there is space pressure in the Fast Recovery Area. (FRA)
• 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 always reclaimed proactively before space pressure occurs.

Answer: A,B

NEW QUESTION # 62
Which three resources are always shared among CDB$ROOT and pluggable databases (PDBs)? (Choose three.)

• A. temporary tablespaces
• B. the log writer process (LGWR)
• C. the Process Monitor Process (PMON)
• D. undo tablespaces
• E. SYSAUX tablespaces
• F. the data dictionary in CDB$ROOT

Answer: A,C,F

NEW QUESTION # 63
Which two are true about flashback features in Oracle Database 19c and later releases?

• A. Flashback logs are monitored and proactively deleted when beyond the retention period definedin db_flashback_retention_target before there is space pressure.
• B. Flashback logs are automatically purged when db_flashback_retention_target is set lower than the time they have already been retained.
• C. Flashback logs are monitored for being older than the retention period defined in db_flashback_retention_target and can be deleted by an administrator written event trigger.
• D. Flashback logs are automatically purged whenever the value Of DB_FLASHBACK_RETENTION_TARGET is changed.
• E. Flashback logs are monitored and proactively deleted when beyond the retention period definedin DB_flashback_retention_TARGET only after there is space pressure

Answer: A,C

NEW QUESTION # 64
Choose three. Which three are true about Oracle Restart?

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

Answer: B,C,D

NEW QUESTION # 65
Which two are direct benefits of the multiprocess, multithreaded architecture of Oracle Database
12c when it is enabled?

• A. Reduced logical I/O
• B. Reduced physical I/O
• C. Reduced virtual memory utilization
• D. Reduced CPU utilization
• E. Improved Serial Execution performance

Answer: C,D

NEW QUESTION # 66
While backing up to the Oracle Fast Recovery Area (FRA), you determined the backup is taking too long and suspect a performance bottleneck.
Which three are true about diagnosing and tuning these problems? (Choose three.)

• A. Data files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITS are a potential performance bottleneck when asynchronous I/O is used.
• B. If an RMAN BACKUP VALIDATE command takes noticeably less than an actual backup, then write I/O is a likely bottleneck.
• C. Setting DBWR_IO_SLAVES to a non zero value can improve backup performance when using asynchronous I/O/
• D. Setting DBWR_IO_SLAVES to a non zero value can improve backup performance when using synchronous I/O.
• E. If an RMAN BACKUP VALIDATE command takes roughly the same time as an actual backup, then read I/O is a likely bottleneck.
• F. Data files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECOND are a potential performance bottleneck when synchronous I/O is used.
• G. If an RMAN BACKUP VALIDATE command takes roughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.

Answer: B,D,F

Explanation:
Reference:
https://web.stanford.edu/dept/itss/docs/oracle/10gR2/backup.102/b14191/rcmtunin003.htm

NEW QUESTION # 67
Which three are true about the SQL Tuning Advisor? (Choose three.)

• A. It considers all SQL statements being analyzed by the advisor task as a group.
• B. It builds SQL profiles for each poorly performing SQL statement to prevent regressions.
• C. It checks each query being analyzed for missing statistics.
• D. It checks each query being analyzed for stale statistics.
• E. It only recommends syntactic changes to SQL statements.
• F. It can recommend semantic changes to SQL statements.

Answer: C,D,F

NEW QUESTION # 68
Choose three. Which three are true about creating container databases (CDBs) and pluggable databases (PDBs) in Oracle 19c and later releases?

• A. A snapshot copy PDB does not depend on an existing storage snapshot of the source PDB.
• B. A CDB can be duplicated using the Database Configuration Assistant (DBCA) in silent mode with no configuration required before starting the duplication.
• C. A PDB snapshot can be a sparse copy of a source PDB.
• D. A PDB snapshot can be a full copy of a source PDB.
• E. A CDB can be duplicated using Recovery Manager (RMAN) with no configuration required before starting the duplication.
• F. A PDB snapshot depends on an existing storage snapshot of the source PDB.
• G. A snapshot copy PDB can be a full copy of a source PDB.

Answer: E,F,G

NEW QUESTION # 69
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.)

• A. Create an application seed, synchronize it with HR_ROOT, and then create the PDB1 application PDB.
• B. Create the PBD1 application PDB and synchronize it with HR_ROOT.
• C. Create an application seed, and install HR_APP in it.
• D. Create the PBD1 application PDB and synchronize it with PDB$SEED.
• E. Create the PDB1 application PDB and install HR_APP in it.

Answer: A,B

NEW QUESTION # 70
Oracle Managed Files (OMF) is enabled in a CDB and this command is successfully executed:

Which three are true? (Choose three.)

• A. An application root PDB is created for APP1.
• B. Application PDBs that are subsequently created in the APP1 application container will be cloned from PDB$SEED.
• C. An application seed PDB is created for APP1.
• D. APP1can never be unplugged.
• E. Application PDBs that are subsequently created in the APP1application container will be cloned from APP1$SEED.
• F. A default service is created for the application root APP1.

Answer: B,C,E

NEW QUESTION # 71
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? (Choose three.)

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

Answer: C,D,F

NEW QUESTION # 72
A container database called CDB1 is OMF-enabled.
PDB_FILE_NAME_CONVERT is not configured in CDB1. PDB1 was unplugged from CDB1 earlier in the week. Examine this command, which will be executed in CDB1:
CREATE PLUGGABLE DATABASE pdb1
USING '/u01/app/oracle/oradata/pdb1.xml'
SOURCE_FILE_NAME_CONVERT =
('/u01/app/oracle/oradata/', '/u02/app/oracle/oradata/');
Which two are true? (Choose two.)

• A. DBMS_PDB.CHECK_PLUG_COMPATIBILITY must be run in CDB1 before executing the command.
• B. /u01/app/oracle/oradata/pdb1.xml does not contain the current locations of data files for PDB1.
• C. PDB1 data files already exist in the correct location.
• D. PDB1 must be dropped from CDB1.
• E. PDB_FILE_NAME_CONVERT must be set before executing the command.

Answer: C,D

Explanation:
Reference:
http://anjaniappsdba.blogspot.com/2016/09/oracle-database-12102c-hot-cloning-of.html

NEW QUESTION # 73
Which three are true about Database Point-in-Time Recovery? (Choose three.)

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

Answer: C,E,F

NEW QUESTION # 74
Examine this output of an export from the current release of an Oracle multitenant database:
$ sqlplus system/oracle.
SQL> col name for a10
SQL> select name, open_mode from v$pdbs;
NAME OPEN_MODE
---------------------------------------
PDB$SEED READ ONLY
PDB1 READ WRITE PDB2 MOUNTED
SQL> exit
Next you execute: $ expdp system/oracle full=y
What is the outcome?

• A. It creates a full export of only the used while connected to the root container and PDB1.
• B. It fails because Data Pump cannot be container.
• C. It creates a full export of the root container and all PDBs.
• D. It creates a full export of the root container and all open PDBs.

Answer: B

NEW QUESTION # 75
Which two are true about data movement between a non-CDB and a PDB using Data Pump? (Choose two.)

• A. Moving data from a PDB to a non-CDB is only possible by using transportable tablespace export and import.
• B. Oracle attempts to convert common users to conventional users when moving schemas from a PDB to a non-CDB.
• C. Oracle attempts to convert conventional database users to local users when moving schemas from a non-CDB to a PDB.
• D. A new PDB is automatically created when importing a non-CDB into a CDB.
• E. Moving data from a non-CDB to a PDB is only possible by using conventional export and import.
• F. Tablespaces are automatically created as need while importing full exports in either a non-CDB or a PDB.

Answer: B,C

NEW QUESTION # 76
Which three are true about requirements for various FLASHBACK operations? (Choose three.)

• A. FLASHBACK version query requires that the RECYCLEBIN parameter be set to ON.
• B. FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time.
• C. FLASHBACK drop requires that the RECYCLEBIN parameter be set to ON.
• D. FLASHBACK drop requires undo to retrieve all versions of a row that existed between two points in time.
• E. FLASHBACK version query requires undo to retrieve all versions of a row that existed between two points in time.
• F. FLASHBACK DATA ARCHIVE requires undo to store all versions of all rows of a table being tracked.

Answer: A,B,C

NEW QUESTION # 77
Which three are true about using Database Upgrade Assistant (DBUA) to upgrade a database? (Choose three.)

• A. A whole database backup must exist before upgrade
• B. Multiple databases with the same ORACLE_HOME can be upgraded simultaneously.
• C. The Pre-Upgrade Information Tool script is executed by DBUA.
• D. DBUA must be launched from the target Oracle Home.
• E. The database must be opened in read-only mode.
• F. All pluggable databases are automatically upgraded as part of a container database upgrade.

Answer: A,C,F

NEW QUESTION # 78
A container database called CDB1 is OMF-enabled.
PDB_FILE_NAME_CONVERT is not configured in CDB1. PDB1 was unplugged from CDB1 earlier in the week. Examine this command, which will be executed in CDB1:
CREATE PLUGGABLE DATABASE pdb1
USING '/u01/app/oracle/oradata/pdb1.xml'
SOURCE_FILE_NAME_CONVERT =
('/u01/app/oracle/oradata/', '/u02/app/oracle/oradata/');
Which two are true? (Choose two.)

• A. DBMS_PDB.CHECK_PLUG_COMPATIBILITY must be run in CDB1 before executing the command.
• B. /u01/app/oracle/oradata/pdb1.xml does not contain the current locations of data files for PDB1.
• C. PDB1 data files already exist in the correct location.
• D. PDB1 must be dropped from CDB1.
• E. PDB_FILE_NAME_CONVERT must be set before executing the command.

Answer: C,D

NEW QUESTION # 79
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. The database must be registered in an RMAN catalog.
• B. Backups can be done incrementally.
• C. Backups must be done incrementally.
• D. Backups must be contained in backup sets.
• E. Only consistent backups can be created.
• F. Backups can be taken only if the database is in archivelog mode.

Answer: B,D

NEW QUESTION # 80
choose one You enable Flashback Data Archive for a table for which you want to track and save all transactions for four years. After some time, the requirement changes for keeping transactions from four to two years. You execute the following command to change the requirement: SQL> ALTER FLASHBACK ARCHIVE fdal MODIFY RETENTION 2 YEAR; What is the outcome?

• A. All historical data older than two years, if any, is archived to flashback logs and the flashback archive is set to new retention time.
• B. All the flashback data archives are purged and the subsequently created flashback archives are maintained for two years
• C. All historical data older than two years, if any, is purged from the flashback archive FDA1.
• D. An error is returned because the retention period cannot be reduced.

Answer: C

NEW QUESTION # 81
Which four are true about a Recovery Manager (RMAN) duplication without a TARGET connection? (Choose four.)

• A. The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is closed.
• B. RMAN SBT-based backups of the database to be duplicated can be used by the auxiliary instance.
• C. The UNDO TABLESPACE clause is always required when no connection exists to the TARGET instance.
• D. The NOREDO clause can be used if the backups of the database being duplicated were taken when the database was in ARCHIVELOG mode.
• E. RMAN "pushes" the backups of the database to be duplicated over the network to the auxiliary instance.
• F. The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is opened.
• G. RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.
• H. The NOREDO clause must be used if the backups of the database being duplicated were taken when the database was in NOARCHIVELOG mode.

Answer: B,D,G,H

NEW QUESTION # 82
Choose the best answer. Which statement correctly describes the SQL profiling performed by the SQL Tuning Advisor?

• A. It is auxiliary information collected by the optimizer for a SQL statement to help use better joins orders.
• B. It is a set of recommendations by the optimizer to change the access methods used.
• C. It is a set of recommendations by the optimizer to create new indexes.
• D. It is auxiliary information collected by the optimizer for a SQL statement to eliminate estimation error.
• E. It is a set of recommendations by the optimizer to restructure a SQL statement to avoid suboptimal execution plans.

Answer: B

NEW QUESTION # 83
You notice that the performance of your production 24x7 Oracle 12c database has significantly degraded. Sometimes, you are not able to connect to the database instance because it hangs.
How can you detect the cause of the degraded performance?

• A. by running ADDM to fetch information from the latest Automatic Workload Repository (AWR) snapshots
• B. by performing emergency monitoring using Real-Time Automatic Database Diagnostic Monitor (ADDM) to fetch data directly from SGA for analysis
• C. by using Active Session History (ASH) data and performing hang analysis
• D. by running ADDM in diagnostic mode

Answer: B

NEW QUESTION # 84
......

Updated Official licence for 1Z0-083 Certified by 1Z0-083 Dumps PDF: https://www.surepassexams.com/1Z0-083-exam-bootcamp.html

Newly Released 1Z0-083 Dumps for Oracle Database 19c Certified: https://drive.google.com/open?id=1WamGGwpBxuhmy7epN_0QXH4JfMXsLAXo