Reliable Oracle Database 19c 1Z1-083 Dumps PDF Jan 22, 2022 Recently Updated Questions

Pass Your  Oracle 1Z1-083 Exam with Correct 160 Questions and Answers

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NEW QUESTION 13
Which two are true about Oracle Optimizer Statistics, their use, and their collection? (Choose two.)

• A. Index balanced B*Tree height is considered when evaluating the cost of using an index.
• B. The Statistics Advisor can help recommend the best way to gather statistics.
• C. The Statistics Advisor generates actions for all recommendations.
• D. Statistics collected using DBMS_STATS always yield the best optimizer result.
• E. The number of table rows is considered when evaluating the cost of accessing a table using an index.

Answer: B,D

 

NEW QUESTION 14
Which two are true about gathering optimizer statistics? (Choose two.)

• A. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$ROOT.
• B. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open PDBs except PDB$SEED.
• C. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open pluggable databases (PDBs)
• D. System statistics can be gathered only while connected to CDB$ROOT.
• E. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB opened in read/write mode gathers object statistics for that PDB.

Answer: C,E

Explanation:
Explanation
https://mikedietrichde.com/2016/10/21/gather-fixed-objects-stats-in-pdbs-as-well/#:~:text=Yes%2C%20you'll%2
.

 

NEW QUESTION 15
Your SALES_ROOT application container has two application PDBs.
The SALES_APP application has a common table, FIN.REVENUE, in the two PDBs.
Examine this query and its output:

Which two are true? (Choose two.)

• A. The REVENUE table must be a list-partitioned table.
• B. The CONTAINERS clause cannot be used in queries on the REVENUE table.
• C. The REVENUE table partitions are not pruned across the PDBs automatically.
• D. A container map exists for the REVENUE table, but is not enabled.
• E. The MAPTABLE tables defines a logical partition key on a commonly used column for the REVENUE table.
• F. The MAPTABLE table is a metadata-linked table.

Answer: C,E

 

NEW QUESTION 16
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. 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 predicts the impact of system changes on SQL workload response time.
• E. It is integrated with the SQL Access Advisor.

Answer: A,D

Explanation:
Reference:
https://www.oracle.com/technetwork/database/manageability/spa-ow09-131455.pdf (4)

 

NEW QUESTION 17
Which three are true about performing an Oracle Database install on Linux?

• A. It can be done before installing Grid Infrastructure for a Standalone Server.
• B. The Oracle Preinstallation RPM must be used to configure the Oracle database installation owner, the Oracle Inventory group, and an Oracle administrative privileges group.
• C. The Oracle PreinstallationRPMcan be used to configure the Oracle database installation owner, the Oracle Inventory group, and an Oracle administrative privileges group.
• 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 runfixup.sh script can install missing RPMs.
• G. The Oracle database administrator must be granted access to the root operating system account to run root privileged scripts.

Answer: A,B,E

 

NEW QUESTION 18
Which four are true about RMAN backup sets? (Choose four.)

• A. Blocks from multiple data files can be contained in one backup piece,
• B. Blocks from multiple data files can be contained in one backup set,
• C. A data file can be split into multiple sections stored in different backup pieces in the same backup set.
• D. A data file can be split into multiple sections stored in different backup sets.
• E. A backup set must be written to media.
• F. A backup set can contain only one backup piece.
• G. A backup set must be written to disk.
• H. A backup piece can belong to only one backup set.

Answer: B,D,E,F

 

NEW QUESTION 19
Examine this configuration:
1. The ORCL database data files are in Automatic Storage Management (Oracle ASM) disk group +DATA.
2. ORCL uses disk group +FRA for the Fast Recovery Area.
3. LISTENER is the listener for ORCL.
4. The database, listener, ASM instance, and ASM disk groups are managed by Oracle Restart.
5. All components are currently shut down.
You execute this command:

What is the outcome?

• A. Only the ORCL database instance, the Oracle ASM instance, and the +DATA and +FRA disk groups are started.
• B. Only the ORCL database instance and the +DATA and +FRA disk groups are started.
• C. The ORCL database, the Oracle ASM instances, the +DATA and +FRA disk groups, and the LISTENER are started.
• D. Only the ORCL database and the ASM instances are started.
• E. Only the ORCL database instance is started.

Answer: A

 

NEW QUESTION 20
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 '/u01/app/oralce/oradata/CDB1/controlfile/controlfile02.ctl'.
• B. It will create '/u01/app/oracle/product/12.2.0.1/db_1/dbs/snapcf_cdb1control02.ctl'.
• C. It will fail because there is no autobackup of the controlfiles.
• D. It will create '$ORACLE_HOME/dbs/cdb1/CDB1/controlfile02.ctl'
• E. It will re-create '/u02/app/oracle/fast_recover_area/cdb1/CDB1/controlfile02.ctl'

Answer: E

 

NEW QUESTION 21
Which three are true In Oracle 19c and later releases?

• 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. An ordinary data pump export of a table with encrypted columns will always encrypt the same columns when imported.
• D. Simultaneous data pump jobs can be limited at the pluggable database (PDB) level.
• 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: B,C,F

 

NEW QUESTION 22
Which three are true about an application container? (Choose three.)

• A. It must have an application seed PDB.
• B. It can contain a single application.
• C. An application PDB can belong to multiple application containers.
• D. It must have an application root PDB.
• E. Two application containers can share an application seed PDB.
• F. It can contain multiple applications.

Answer: B,C,D

 

NEW QUESTION 23
Examine this configuration:

You execute these commands before upgrading the database to the current release:

For which databases will fixup scripts be created?

• A. CDB1 and PDB$SEED only
• B. CDB1, PDB$SEED, and PDB1 only
• C. PDB$SEED, PDB1, and PDB2 only
• D. CDB1, PDB1, and PDB2 only
• E. CDB1, PDB$SEED, PDB1, and PDB2

Answer: A,C

 

NEW QUESTION 24
Which two are true about Recovery Manager (RMAN) diagnostic message output?

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

Answer: A,F

 

NEW QUESTION 25
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 checks each query being analyzed for missing statistics.
• C. It only recommends syntactic changes to SQL statements.
• D. It checks each query being analyzed for stale statistics.
• E. It builds SQL profiles for each poorly performing SQL statement to prevent regressions.
• F. It can recommend semantic changes to SQL statements.

Answer: B,D,E

 

NEW QUESTION 26
Which four are true about RMAN backup sets?

• A. A backup set can contain only one backup piece.
• B. A data file can be split into multiple sections stored in different backup pieces in the same backup set.
• C. A data file can be split into multiple sections stored in different backup sets.
• D. Blocks from multiple data files can be contained in one backup piece.
• E. A backup piece can belong to only one backup set.
• F. A backup set must be written to media.
• G. Blocks from multiple data files can be contained in one backup set.
• H. A backup set must be written to disk.

Answer: B,C,D,H

 

NEW QUESTION 27
Which two are true about the Optimizer Statistics Advisor?

• A. It can be run only automatically.
• B. It can recommend changes to improve the statistics gathering process.
• C. It can be run only manually.
• D. It always analyzes all schemas in the database.
• E. It runs automatically every night by default.

Answer: A,B

 

NEW QUESTION 28
Examine this configuration:
1.The ORCL database data files are in Automatic Storage Management (Oracle ASM) disk group +DATA.
2.ORCL uses disk group +FRA for the Fast Recovery Area.
3.LISTENER is the listener for ORCL.
4.The database, listener, ASM instance, and ASM disk groups are managed by Oracle Restart.
5.All components are currently shut down.
You execute this command:

What is the outcome?

• A. The ORCL database, the Oracle ASM instances, the +DATA and +FRA disk groups, and the LISTENER are started.
• B. Only the ORCL database instance and the +DATA and +FRA disk groups are started.
• C. Only the ORCL database instance, the Oracle ASM instance, and the +DATA and +FRA disk groups are started.
• D. Only the ORCL database and the ASM instances are started.
• E. Only the ORCL database instance is started.

Answer: A

Explanation:
Explanation
https://docs.oracle.com/html/E25494_01/start001.htm

 

NEW QUESTION 29
Which three are true about Automatic Workload Repository (AWR)? (Choose three.)

• A. AWR data is stored in the SYSTEM tablespace.
• B. By default, AWR snapshots are retained for 7 days.
• C. The taking of AWR snapshots can be disabled.
• D. Its collection level is determined by the value of the STATISTICS_LEVEL database parameter.
• E. By default, AWR snapshots are taken every 60 minutes.

Answer: C,D,E

 

NEW QUESTION 30
Which two are true about the SQL Tuning Advisor?

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

Answer: A,D

 

NEW QUESTION 31
Which three are true about Automatic Workload Repository (AWR)? (Choose three.)

• A. By default, AWR snapshots are retained for 7 days.
• B. AWR data is stored in the SYSTEMtablespace.
• C. The taking of AWR snapshots can be disabled.
• D. Its collection level is determined by the value of the STATISTICS_LEVELdatabase parameter.
• E. By default, AWR snapshots are taken every 60 minutes.

Answer: C,D,E

Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B28359_01/server.111/b28320/initparams240.htm#REFRN10214

 

NEW QUESTION 32
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