[2024] Free 1Z1-083 Exam Dumps to Pass Exam Easily [Q89-Q110]

[2024] Free 1Z1-083 Exam Dumps to Pass Exam Easily

1Z1-083 Exam Dumps, 1Z1-083 Practice Test Questions

NEW QUESTION # 89
Which three are true about opatchauto?

• A. It Is used to apply interim patches to Oracle Grid Infrastructure and Oracle Database home combinations.
• B. It must be invoked by a user with root user privileges.
• C. It requires the Oracle Grid Infrastructure and Oracle Database instances to be shut down before being invoked.
• D. Patchsets are applied via opatchauto.
• E. It applies patches in nonrolling mode by default.
• F. It performs a shutdown and then a restart of all processes in both Oracle Grid Infrastructure and Oracle Database home during the patching process.
• G. Users must always input patch plans to opatchauto.

Answer: C,D,E

NEW QUESTION # 90
choose three You want to duplicate one of your databases when connected to the target database and to the recovery catalog. Which three are true about this type of database duplication ) The duplication process can create backup sets or image copies

• A. The duplication -process pushes backup sets to the auxiliary instance.
• B. The duplication process can use existing backup sets or image copies
• C. The target database must be in mount state.
• D. The target database must be open
• E. The duplication process can use existing backup sets or image copies.
• F. The duplication process pushes image copies to the auxiliary instance.

Answer: D,E,F

NEW QUESTION # 91
choose two Which two are true about RMAN image copies?

• A. They can be encrypted using Transparent Data Encryption (TDE).
• B. They can be used as a level 0 incremental backup.
• C. They can only be written to disk.
• D. They can be used as a level 1 incremental backup.
• E. They are the only backup option available for databases in NOARCHIVELOG mode.

Answer: B,C

NEW QUESTION # 92
While backing up to the Oracle Fast Recovery Area (FRA), you determined the backup istaking too long and suspect a performance bottleneck. Which three are true about diagnosing and tuning these problems? (Choose three.)

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

Answer: A,C,D

NEW QUESTION # 93
Choose three. Which three are true about Rapid Home Provisioning of Oracle software?

• A. It can be used only on nodes with Oracle Grid Infrastructure installed.
• B. It can be used to create a single-instance Oracle Database in an already-installed Oracle home. D)It can be used to deploy new homes without disrupting active databases.
• C. It can be used to patch existing Oracle software installations.
• D. It can be used to upgrade only single-instance databases running on Oracle Restart.
• E. It can be used to create templates of Oracle homes as gold images of only Oracle databases.

Answer: B,C,E

NEW QUESTION # 94
Which three are true about transporting databases across platforms using Recovery Manager (RMAN) image copies? (Choose three.)

• A. By default, the transported database will use Oracle Managed Files (OMF)
• B. Databases can be transported between systems with different endian formats.
• C. Data files can be converted on the destination system.
• D. Data files can be converted on the source system.
• E. A new DBID is automatically created for the transported database.
• F. The password file is automatically converted by RMAN.

Answer: A,C,D

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 # 95
hoose two. Which two are true about Recovery Manager (RMAN) diagnostic message output?

• A. The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file and to standard output.
• B. RMAN error stacks should be read from the bottom up as that is the order in which errors are generated.
• C. The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file only.
• D. MAN error stacks should be read from the top down as that is the order in which errors are generated.
• E. Media Management messages for SBT devices are written to an Oracle trace file.

Answer: C,D

NEW QUESTION # 96
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 System Global Area.
• B. Run the SQL Tunning Advisor.
• C. Run the Memory Advisor for the Program Global Area.
• D. Run the SQL Access Advisor.
• E. Run the Memory Advisor for the shared pool.

Answer: E

NEW QUESTION # 97
Which two are true about RMAN backups when using a media manager? (Choose two.)

• A. A media manager is required to create RMAN image copies.
• B. A media manager is required to create RMAN proxy copies.
• C. The media manager layer (MML) routines provided by Oracle support any vendors' media management products.
• D. A media manager always writes RMAN requested backups to tape.
• E. By default, a request for a proxy copy may result in a backup set being created.

Answer: A,D

NEW QUESTION # 98
Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

• A. Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.
• B. A subset of the target database can be duplicated.
• C. A connection to the recovery catalog instance is always required.
• D. A backup of the target database is always required.
• E. A connection to an auxiliary instance is always required.
• F. A new DBID is always created for the duplicated database.
• G. A connection to the target database instance is always required.
• H. Duplication can be done by having the target database instance push copies to the auxiliary database instance.

Answer: A,B,E,H

Explanation:
A duplicate database is a copy of your target database. With the FOR STANDBY clause, it keeps the same unique database identifier(DBID); If FOR STANDBY not specified it creates a new DBID.
The duplicate database can include the same content or only a subset from the source database.
It can be in the same host or a separate host.
The principal work of the duplication is performed by the auxiliary channels.These channels correspond to a server session on the auxiliary instance on the destination host for backup based duplication.
For active database duplication the target channels perform the work of pushing data file copies to the auxiliary instance (if number of allocated target channels is greater than the number of allocated auxiliary channels).

NEW QUESTION # 99
Examine the RMAN command:
RMAN> CONFIGURE ENCRYPTION FOR DATABASE ON;
RMAN> BACKUP DATABASE PLUS ARCHIVELOG;
Which prerequisite must be met before accomplishing the backup?

• A. Oracle Database Vault must be enabled.
• B. All the tablespaces in the database must be encrypted
• C. The password for the encryption must be set up.
• D. Oracle wallet for the encryption must be set up.

Answer: D

NEW QUESTION # 100
Choose the best answer. 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 fails because Data Pump cannot be container.
• B. It creates a full export of the root
• C. It creates a full export of only the used while connected to the root container and PDB1. container and all PDBs. container and all open PDBs. root container.
• D. It creates a full export of the root

Answer: A

NEW QUESTION # 101
Which three are true about Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the Manageability Monitor (MMON) background process? (Choose three.)

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

Answer: A,B,F

NEW QUESTION # 102
You must transport the UNIVERSITYtablespace from one database to another.
The UNIVERSITYtablespace is currently open read/write.
The source and destination platforms have different endian formats.
Examine this list of actions:
1. Make the UNIVERSITY tablespace read-only on the source system.
2. Export the UNIVERSITYtablespace metadata using EXPDP.
3. Convert the UNIVERSITYtablespace data fies to the destination platform format using RMAN on the source system.
4. Copy the UNIVERSITYtablespace data files to the destination system.
5. Copy the Data Pump dump set to the destination system.
6. Convert the UNIVERSITYtablespace data files to the destination platform format using RMAN on the destination system.
7. Import the UNIVERSITYtablespace metadata using IMPDP.
8. Make the UNIVERSITY tablespace read/write on the destination system.
Which is the minimum number of actions required, in the correct order, to transport the UNIVERSITYtablespace?

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

Answer: D

Explanation:
A - is not correct because the endinaess are different so either 3 or 6 is needed B - is not correct because step 5 is missing but the trasport of the dump on the target is mandatory accoridng to :
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/admin/transporting- data.html#GUID-CEDFBF9B-3A3B-43D4-9FF2-84EA2537BA8C C - is the correct answer D- not correct because it containes both 3 and 6 E - is not correct beacuse they missed step 1 of setting the tbs read-only

NEW QUESTION # 103
Examine this command:
$ rhpctl move database -sourcehome Oracle_home_path -destinationhome
Oracle_home_path
For which two purposes can you use this command? (Choose two.)

• A. to switch the Oracle Database home when using a centralized Rapid Home Provisioning server
• B. to switch back to the previous Oracle home as part of a rollback operation
• C. to switch to a patched Oracle Database home
• D. to switch an existing Oracle Database home to a newer release of Oracle software on the same server
• E. to switch to a read-only Oracle home

Answer: C,D

Explanation:
Explanation/Reference: https://docs.oracle.com/en/database/oracle/oracle-database/18/cwadd/rapid-home- provisioning.html#GUID-856C7378-2510-4B3E-8BE1-B4D79DF4FE8B

NEW QUESTION # 104
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. Increase the size of tape I/O buffers.
• B. Enable asynchronous disk I/O.
• C. Disable FORCE LOGGING for the database.
• D. Increase the size of the database buffer cache.
• E. Increase the level of RMAN multiplexing.

Answer: B,E

NEW QUESTION # 105
Which three are true in Oracle 19c and later releases? (Choose three.)

• A. A transportable data pump import can leave a plugged-in tablespace in read/write mode.
• B. Tablespaces always remain in read/write mode during transportable tablespace operations.
• C. Simultaneous data pump jobs can be limited at the pluggable database (PDB) level.
• D. An ordinary data pump export of a table with encrypted columns will always encrypt the same columns when imported.
• E. Tablespaces never remain in read/write mode during transportable tablespace operations.
• F. A transportable data pump import can leave a plugged-in tablespace in read-only mode.

Answer: A,B,D

NEW QUESTION # 106
Which two are true about the SQL Tuning Advisor?

• A. It can recommend semantic changes to SQL statements.
• B. It prevents performance regressions for SQL statements when changes are made.
• C. It checks each query being analyzed for missing or stale statistics.
• D. It considers all SQL statements being analyzed by the advisor task as a group.
• E. It only recommends syntactic changes to SQL statements.

Answer: A,C

NEW QUESTION # 107
Which two are true about creating pluggable databases (PDBs) in Oracle 19c and later releases?

• A. A snapshot copy PDB can be a full copy of a source PDB
• B. A PDB snapshot depends on an existing storage snapshot of the source PDB.
• C. APDB snapshot can be a full copy of a source PDB.
• D. A PDB snapshot can be a sparse copy of a source PDB
• E. A snapshot copy PDB does not depend on an existing storage snapshot of the source PDB.

Answer: C,D

NEW QUESTION # 108
Which three are true about performing an Oracle Database install on Linux? (Choose three.)

• A. The runfixup.sh script can install missing RPMs.
• B. The Oracle Preinstallation RPM can be used to configure the Oracle database installation owner, the Oracle Inventory group, and an Oracle administrative privileges group.
• C. It can be done before installing Grid Infrastructure for a Standalone Server.
• D. It can be done after installing Grid Infrastructure for a Standalone Server.
• E. It allows you to select the languages supported by the Oracle database server.
• F. The Oracle database administrator must be granted access to the root operating system account to tun root privileged scripts.
• G. The Oracle Preinstallation RPM must be used to configure the Oracle database installation owner, the Oracle Inventory group, and an Oracle administrative privileges group.

Answer: B,C,D

Explanation:
You can install grid and the the oracle software, otherwise you can also install oracle software before the gird and then register database with oracle restart.

NEW QUESTION # 109
Oracle Managed Files (OMF) is enabled in a CDB and this command is successfully executed:

Which three are true?

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

Answer: B,C,F

NEW QUESTION # 110
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