Free 1Z1-083 braindumps download (1Z1-083 exam dumps Free Updated Oct 27, 2023) [Q171-Q195]

Free 1Z1-083 braindumps download (1Z1-083 exam dumps Free Updated Oct 27, 2023)

1Z1-083 Dumps for Pass Guaranteed - Pass 1Z1-083 Exam 2023

NEW QUESTION # 171
Examine the RMAN command: RMAN> RUN { ALLOCATE CHANNEL c1 DEVICE TYPE sbt; ALLOCATE CHANNEL c2 DEVICE TYPE sbt; ALLOCATE CHANNEL c3 DEVICE TYPE sbt; BACKUP INCREMENTAL LEVEL = 0 (DATAFILE 1,4,5 CHANNEL c1) (DATAFILE 2,3,9 CHANNEL c2) (DATAFILE 6,7,8 CHANNEL c3); SQL 'ALTER SYSTEM ARCHIVE LOG CURRENT'; } Which statement is true about the command?

• A. It creates compressed backup sets.
• B. It uses asynchronousI/O for the backup.
• C. It uses multisection backup.
• D. It uses parallelization for the backup set.

Answer: D

NEW QUESTION # 172
Oracle Managed Files (OMF) is enabled in a CDB and this command is successfully executed:

Which three are true? (Choose three.)

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

Answer: A,C,D

NEW QUESTION # 173
Examine these actions:
1. Create a new database for a recovery catalog.
2. Create a tablespace with sufficient space in the catalog database for the recovery catalog.
3. Configure archivelog mode for the catalog database.
4. Create a user to own the recovery catalog schema with quota on the tablespace that will contain the catalog.
5. Grant the recovery_catalog_owner role to the recovery catalog schema owner.
6. Grant the sysbackup privilege to the recovery catalog schema owner.
Which are the minimum actions that must be performed before executing the create catalog command?

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

Answer: C

NEW QUESTION # 174
Which two are true about Oracle Flashback features? (Choose two.)

• A. FLASHBACK VERSION QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files.
• B. FLASHBACK TABLE can undrop a column.
• C. After a database is restored from flashback logs using the FLASHBACK DATABASE command, it is sometimes rolled forward using redo logs.
• D. FLASHBACK DROP can undrop an index when undropping a table.
• E. FLASHBACK QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files.

Answer: C,D

NEW QUESTION # 175
Examine these queries and their output: An online RMAN backup of the CDB was taken an hour before Restore Point R1 was created. You want to recover PDB1 to Restore Point R1. How do you achieve this?

• A. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1by using RMAN while connected to CDB$ROOT.
• B. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1by using RMAN while connected to PDB1.
• C. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1by using SQL while connected to PDB1.
• D. This cannot be done due to the lack of a clean restore point.
• E. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1by using SQL while connected to CDB$ROOT.

Answer: D

NEW QUESTION # 176
Choose three. Which three are true about the Oracle Optimizer?

• A. It updates stale object statistics in the Data Dictionary.
• B. It can only use SQL Plan Directives tied to the SQL statement for which a plan is being generated.
• C. It can re-optimize execution plans after previous executions detect suboptimal plans.
• D. It considers object statistics when generating execution plans for SQL statements.
• E. It considers the filters in WHERE clauses when generating execution plans for SQL statements.
• F. It obeys all hints.

Answer: A,C,E

NEW QUESTION # 177
Which four are true about a Recovery Manager (RMAN) duplication without a TARGET connection? (Choose four.)

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

NEW QUESTION # 178
Which operating system group is NOT needed to perform an Oracle Database installation?

• A. OSOPER
• B. OSRACDBA
• C. OSASM
• D. OSKMDBA
• E. OSDBA

Answer: B

NEW QUESTION # 179
Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor? (Choose two.)

• A. The Data Recovery Advisor CHANGE FAILURE command can be used only to change failure priorities.
• B. A failure can be closed only when it has been repaired.
• C. Using the Data Recovery Advisor LIST FAILURE command always requires that the database for which failures are to be listed is in MOUNT state.
• D. Data Recovery Advisor can proactively check for failures.
• E. Data Recovery Advisor can be used if a database is closed.

Answer: A,D

NEW QUESTION # 180
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 the database buffer cache.
• B. Increase the level of RMAN multiplexing.
• C. Increase the size of tape I/O buffers.
• D. Disable FORCE LOGGING for the database.
• E. Enable asynchronous disk I/O.

Answer: A,D

NEW QUESTION # 181
Which two are true about automatic block repair?

• A. It is not possible for media corrupt blocks.
• B. Real-Time Query must be enabled on a primary database for automatic block repair to be done on any of its physical standby databases.
• C. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on that physical standby database.
• D. Automatic block repair can repair blocks with no standby database if db_block_checking = TRUE.
• E. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on its primary database.

Answer: A,B

NEW QUESTION # 182
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 provides before and after execution statistics for each SQL statement in the analysis task
• C. SQL statements that were originally run concurrently are run concurrently by SPA.
• D. It is integrated with the SQL Access Advisor.
• E. It offers fine-grained analysis of all the SQL statements in the analysis task as a group.

Answer: A,E

NEW QUESTION # 183
Choose three. Which three are true about a container database (CDB)?

• A. It can contain only one PDB$SEED, which is created when the CDB is created.
• B. It contains predefined common roles in both the root and the seed.
• C. It can be created from a non-CDB.
• D. It can contain only one Application Container seed, which is created when the Application Container is created.
• E. It can be created by cloning an existing CDB.
• F. It can have any number of pluggable databases (PDBs) limited only by space availability.
• G. It can have local users with the same name in different PDBs.

Answer: A,B,E

NEW QUESTION # 184
Which two are direct benefits of the multiprocess, multithreaded architecture of Oracle Database 12c when it is enabled?

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

Answer: A,B

NEW QUESTION # 185
Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

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

Answer: C,D,E,F

NEW QUESTION # 186
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. If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then read I/O is a likely bottleneck.
• B. If an RMAN BACKUP VALIDATE command takes noticeably lessthan 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 synchronous I/O.
• D. Data files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECOND are a potential performance bottleneck when synchronous I/O is used.
• E. If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.
• F. Data files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITS are a potential performance bottleneck when asynchronous I/O is used.
• G. Setting DBWR_IO_SLAVES to a non zero value can improve backup performance when using asynchronous I/O/

Answer: B,C,D

NEW QUESTION # 187
Examine this output: Which two are true? (Choose two.)

• A. PDB1 is always limited to 40% of the available system resources regardless of demand.
• B. PDB3 can use all available parallel execution processes at times.
• C. PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand.
• D. Any PDB not specified in the plan will be unable to execute statements in parallel.
• E. PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand.
• F. Any PDB notspecified in the plan will be able to use a maximum of 16.5% of the available system resources.

Answer: E

NEW QUESTION # 188
You issued this command: RMAN> BACKUP RECOVERY FILES; Which two are true? (Choose two.)

• A. All Oracle recovery files not in the current FRA that have not been backed up already, are backed up.
• B. All non-Oracle files in the current FRA that have not been backed up already, are backed up.
• C. These backups can be written to disk or SBT.
• D. All Oracle recovery files in the current FRA that have not been backed up already, are backed up. D)All Oracle recovery files in the current fast recovery area (FRA) are backed up.

Answer: A,D

NEW QUESTION # 189
choose four Which four are true about performance-related Oracle tools?

• A. SQL Performance Analyzer can identify regressed SQL statements.
• B. The Active Session History (ASH) report is based on wait event samples.
• C. The Automatic Database Diagnostic Monitor (ADDM) Compare Period report can compare two consecutive periods.
• D. SQL Performance Analyzer can suggest schema changes.
• E. Database Replay always uses one replay client for all the original database sessions.
• F. Database Replay always uses one replay client for each original database session.
• G. The Automatic Database Diagnostic Monitor (ADDM) Compare Period report can compare two non-consecutive periods.

Answer: A,C,D,G

NEW QUESTION # 190
Choose one You want to create a test database as a replica of your production database with minimum intervention from a DBA. Which method would you use?

• A. Create the database by using the CREATE DATABASE . . . command and manually import data by using Data Pump.
• B. Use DBCA to create a template from the existing database to contain the database structure with data files and then use the same template to create the database in the new location.
• C. Use Database Configuration Assistant (DBCA) to create a template from the existing database to contain the database structure.
• D. Use DBCA to create a template from the existing database to contain the database structure and then manually copy the data by using Oracle Data Pump.

Answer: B

NEW QUESTION # 191
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?

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

Answer: A,D

NEW QUESTION # 192
Which two are true about Oracle Flashback features? (Choose two.)

• A. FLASHBACK QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files.
• B. After a database is restored from flashback logs using the FLASHBACK DATABASE command, it is sometimes rolled forward using redo logs.
• C. FLASHBACK TABLE can undrop a column.
• D. FLASHBACK DROP can undrop an index when undropping a table.
• E. FLASHBACK VERSION QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files.

Answer: A,E

NEW QUESTION # 193
Which two are true about Rapid Home Provisioning of Oracle software? (Choose two.)

• A. It can be used for both Oracle Database and Oracle Grid Infrastructure, excluding Oracle Restart.
• B. It can be used only for Oracle Grid Infrastructure, including Oracle Restart.
• C. It can be used for applications and middleware.
• D. It can be used for both Oracle Database and Oracle Grid Infrastructure, including Oracle Restart.
• E. It can be used only for Oracle Grid Infrastructure, excluding Oracle Restart.

Answer: A,E

Explanation:
Explanation
Reference https://docs.oracle.com/en/database/oracle/oracle-database/12.2/cwadd/rapid-homeprovisioning.
html#GUID-CCEC5960-EDA4-4A3F-9643-0CA308EA49AA

NEW QUESTION # 194
Which two are true about the Automatic Database Diasnostic Monitor (ADDM)? (Choose two.)

• A. Results are written to the alert log.
• B. It analyzes a period of time corresponding to the 12 hours of activity.
• C. It analyzes a period of time corresponding to the last day of activity.
• D. It runs automatically after each AWR snapshot.
• E. A DBA can run it manually.

Answer: A,D

NEW QUESTION # 195
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Oracle 1Z1-083 exam measures your proficiency in different areas, including the installation and configuration of Oracle databases, managing database storage structures, implementing security measures, and administering users and privileges. You will also be tested on your ability to monitor and tune database performance, diagnose and troubleshoot issues, and backup and recover data. 1Z1-083 exam is designed to assess your practical skills and knowledge of Oracle Database Administration, making it an essential requirement for professionals seeking to advance their careers in this field.

 

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