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Oracle 1Z1-083 exam is designed for experienced database administrators who have a minimum of two years of experience in managing and administering Oracle databases. Candidates are expected to have hands-on experience in managing databases in a production environment. They should have a good understanding of Oracle database architecture and be familiar with the various tools and utilities used for database administration.

Oracle 1Z1-083: Oracle Database Administration II test is intended for individuals who are seeking to enhance their knowledge in Oracle Database Administration. Oracle Database Administration II certification is also suitable for database administrators who want to keep up to date with the latest trends and best practices in managing and administering an Oracle database. 1Z0-083 exam is recognized globally, and passing it can provide a significant boost to your career prospects.

 

NEW QUESTION # 28
Which three are true about post-upgrade activities when upgrading an Oracle database using Database Upgrade Assistant?

• A. Time zone files must be upgraded manually using the DBMS_DST PL/SQL package.
• B. Any Recovery Manager (RMAN) recovery catalog must be upgraded manually.
• C. The new extended data type capability must be enabled by running the utlrp.sql script
• D. After a manual upgrade, TNSNAMES.ORA entries must be updated to reflect the new ORACLE_HOME.
• E. The Oracle Application Express configuration should be updated after upgrading Oracle Database.

Answer: B,C,E

NEW QUESTION # 29
Which three are true about backing up the control file?

• A. It gets backed up automatically by RMAN when the BACKUP SPFILE command is used.
• B. It can be backed up manually as a binary copy.
• C. It can get backed up automatically as a binary copy.
• D. It can be backed up manually as a trace file containing SQL statements for control file recreation.
• E. It gets backed up automatically by RMAN as a trace file containing SQL statements for control file recreation when a database backup occurs.
• F. It cannot be backed up manually as a binary copy.

Answer: B,C,D

NEW QUESTION # 30
Choose two. Which two are true about various Oracle security and auditing capabilities?

• A. Fine-grained auditing (FGA) policies in an application root are automatically synchronized to all application PDBs contained in the application container when they are updated.
• B. Unified auditing can be automatically synchronized to all application PDBs in an application container.
• C. Application-common OLS policies can be created only if all the PDBs in the application container are closed.
• D. Application-common TSDP policies are always container specific.
• E. Application-common Transparent Security Data Protection (TSDP) policies can be created only if all the PDBs in the application container are closed.

Answer: A,B

NEW QUESTION # 31
Which two are true about SQL Performance Analyzer (SPA)? (Choose two.)

• A. It predicts the impact of system changes on SQL workload response time.
• B. It offers fine-grained analysis of all the SQL statements in the analysis task as a group.
• C. It is integrated with the SQL Access Advisor.
• D. SQL statements that were originally run concurrently are run concurrently by SPA.
• E. It provides before and after execution statistics for each SQL statement in the analysis task

Answer: A,E

Explanation:
SQL Performance Analyzer measures the impact of system changes both on the overall execution time of the SQL workload and on the response time of every individual SQL statement in the workload. By default, SQL Performance Analyzer uses elapsed time as a metric for comparison.

NEW QUESTION # 32
Choose the best answer You want to create a duplicate database DUP_DB from your production database PROD on the same host. The PROD database uses Automatic Storage Management (ASM) for storage. Regular backups are taken using RMAN connected to a recovery catalog. You create an auxiliary instance and want to execute the command: RMAN> DUPLICATE TARGET DATABASE TO dup_db FROM ACTIVE DATABASE; What is a prerequisite for the successful execution of this command

• A. Flashback must be enabled for the PROD database.
• B. RMAN must be connected to the target database instance and the auxiliary instance.
• C. The target database must be in MOUNT state.
• D. A most recent backup set of the PROD database must exist.

Answer: B

NEW QUESTION # 33
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. Setting DBWR_IO_SLAVESto a non zero value can improve backup performance when using asynchronous I/O/
• B. Data files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECONDare a potential performance bottleneck when synchronous I/O is used.
• C. Data files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITSare a potential performance bottleneck when asynchronous I/O is used.
• D. If an RMAN BACKUP VALIDATEcommand takes roughly the same time as an actual backup, then read I/O is a likely bottleneck.
• E. If an RMAN BACKUP VALIDATEcommand takes noticeably less than an actual backup, then write I/O is a likely bottleneck.
• F. If an RMAN BACKUP VALIDATEcommand takes roughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.
• G. Setting DBWR_IO_SLAVESto a non zero value can improve backup performance when using synchronous I/O.

Answer: D,E,G

Explanation:
http://docshare04.docshare.tips/files/21043/210437276.pdf

NEW QUESTION # 34
Examine this configuration:
1. CDB1is a container database.
2. PDB1and PDB2 are pluggable databases in CDB1.
You execute these commands successfully:

Which two are true? (Choose two.)

• A. Redo logs are opened.
• B. CDB$ROOT is in MOUNT state.
• C. PDB$SEED is in READ ONLY state.
• D. PDB1 and PDB2 are in READ ONLY state.
• E. PDB1 and PDB2 are in MOUNT state.

Answer: B,E

Explanation:
When a CDB is mounted, the CBD root is mounted, which means that the control files are opened, as well as the PDBs.

NEW QUESTION # 35
Which three are true about Database Point-in-Time Recovery? (Choose three.)

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

Answer: B,E,F

NEW QUESTION # 36
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. 1,3,4,6,8
• C. 1,2,3,4,5,6,7,8
• D. 2,3,4,5,6,7

Answer: A

NEW QUESTION # 37
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, and install HR_APP in it.
• B. Create the PBD1 application PDB and synchronize it with PDB$SEED.
• C. Create the PDB1 application PDB and install HR_APP in it.
• D. Create an application seed, synchronize it with HR_ROOT, and then create the PDB1 application PDB.
• E. Create the PBD1 application PDB and synchronize it with HR_ROOT.

Answer: D,E

NEW QUESTION # 38
Which three are true about recovery operations done without using Recovery Manager (RMAN)? (Choose three.)

• A. A lost index tablespace can be re-created without performing any recovery.
• B. A lost SPFILE can be recovered from memory using SQL*PLUS.
• C. A lost PFILE can be re-created alert.log using SQL*PLUS.
• D. A lost password file can be manually re-created with the orapwd utility.
• E. A lost password file can be re-created with SQL*PLUS.
• F. A lost TEMPFILE must always be re-created manually.

Answer: C,D,E

NEW QUESTION # 39
For which two tasks can you use the DBMS_PDB.DESCRIBE procedure?

• A. to generate a . pdb archive file for any PDB in the current CDB
• B. to generate an XML metadata file that describes a non-CDB Oracle 12c database so that it can be plugged in as a PDB
• C. to generate an XML metadata file that describes the current plugged-in PDB
• D. to determine whether an XML file describes a PDB that can be plugged into the CDB in which you run the procedure
• E. to generate an XML metadata file from any unplugged PDB

Answer: B,C

NEW QUESTION # 40
Which three are true about Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the Manageability Monitor (MMON) background process? (Choose three.)

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

Answer: B,D,E

NEW QUESTION # 41
Which two are true about Oracle Flashback features?

• A. After a database is restored from flashback logs using the flashback database command, it is sometimes rolled forward using redo logs.
• B. flashback drop can undrop an index when undropping a table.
• C. flashback query can retrieve redo records from online and archived redo log files.
• D. flashback version query can retrieve redo records from online and archived redo log files.
• E. flashback table can undrop a column.

Answer: C,E

NEW QUESTION # 42
Which two are true about flashback features in Oracle Database 19c and later releases? (Choose two.)

• A. 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.
• B. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGET before there is space pressure.
• C. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGET only after there is space pressure.
• D. Flashback logs are automatically purged whenever the value of
  DB_FLASHBACK_RETENTION_TARGET is changed.
• E. Flashback logs are automatically purged when DB_FLASHBACK_RETENTION_TARGET is set lower than the time they have already been retained.

Answer: C,D

NEW QUESTION # 43
Which three are true in Oracle 19c and later releases? (Choose three.)

• A. Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault.
• B. All the Oracle-supplied accounts are Schema Only accounts.
• C. Unified Auditing can be configured to audit only events that are issued indirectly by an audited user.
• D. Unified Auditing can be configured to audit only events that are issued directly by an audited user.
• E. Schema Only accounts can be granted administrator privileges.
• F. If the password file location changes, then the new location is used automatically by the Oracle Server.

Answer: A,B,E

Explanation:
Explanation/Reference: https://mandysandhu.com/2018/04/30/oracle-database-18c-schema-only-accounts/

NEW QUESTION # 44
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?

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

Answer: A,E

NEW QUESTION # 45
Which two are true about reclaiming space used by Flashback logs in Oracle Database 19c and later releases? (Choose two.)

• A. Space is always reclaimed automatically when the retention period for Flashback logs is lowered.
• B. Space might be reclaimed automatically when the retention period for Flashback logs is lowered.
• C. Space is always reclaimed proactively before space pressure occurs.
• 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,E

NEW QUESTION # 46
Which three are true about Oracle Grid Infrastructure for a Standalone Server?

• A. It creates one disk group during installation.
• B. It includes both Oracle Restart and Oracle Automatic Storage Management (ASM) software.
• C. Automatic Storage Management (ASM) requires that O/S groups OSASM and OSDBA be assigned as secondary groups for its installation owner.
• D. It requires the operating sys em oracle_base environment variable to be predefined before installation.
• E. It requires Oracle ASM Filter Driver (ASMFD) to manage Automatic Storage Management (ASM) disks.
• F. It requires Oracle ASMLibto manage Automatic Storage Management (ASM) disks.

Answer: A,B,E

NEW QUESTION # 47
Which two are true about Rapid Home Provisioning (RHP), which has been available since Orcale 18c?
(Choose two.)

• A. It can be used to provision middleware.
• B. It is an Oracle Database service
• 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: A,C

NEW QUESTION # 48
Which four are true about a Recovery Manager (RMAN) duplication without a TARGET connection? (Choose four.)

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

Answer: D,E,F,H

Explanation:
Reference:
http://oradb-srv.wlv.ac.uk/ora12c/RCMRF/rcmsynta020.htm

NEW QUESTION # 49
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